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Solvent of choice for critical cleaning of oxygen components and services

Critical Cleaning Solvent

Guide to the standards and use of ProSolv®5408e solvent for critical cleaning of oxygen components and services

The ongoing pandemic has increased the demand for critical cleaning of oxygen components and services to treat patients with the Covid-19 symptoms. The need for respirators and installation of new and extended oxygen systems in hospitals, clinics and care homes with the provision of ancillary pressure reduction and delivery systems has led to a massive increase in demand for the valves, fittings and pipelines which control the supplies from storage tanks and cylinders, all of which need critical cleaning.

The NEW sustainable solvent blend from EnviroTech Europe ticks all the boxes with the perfect profile for a vapour degreasing solvent for critical cleaning.

ProSolv 5408e is a sustainable zero OPD and zero GWP solvent blend for high performance critical cleaning.  This new solvent ticks all the boxes with the perfect profile for a vapour degreasing solvent.

ProSolv 5408e lower boiling point, economical with energy and low solvent losses, faster production, reduced costs, easy handling. Exceptionally low surface tension to penetrate micron sized holes and close contact surfaces.

High KB value for removal of organic residues, compatible with organic and synthetic oils and most plastics and metals, non-flammable, with zero ozone depletion (ODP) and global warming potential (GWP).

ProSolv 5408e is the perfect replacement for trichloroethylene, nPB (n-propyl bromide), perchloroethylene or flammable solvents used in general engineering cleaning processes.

THE SOLVENT OF CHOICE FOR CRITICAL CLEANING

ProSolv 5408e has a unique range of characteristics make it the solvent of choice for critical cleaning applications such as oxygen components and service line cleaning, aircraft avionics and aerospace parts and servicing, precision optics, medical and high vacuum components and electronics.

ProSolv 5408e can be used in most solvent cleaning systems, one tank vapour degreasing or multi tank immersion / vapour tank systems using ultrasonics or flush cleaning for complex mechanical and electronic components with blind holes and channels and close mounted electronics or for removing grinding and buffing soils on surfaces.

ProSolv 5408e is soft on the environment and safer for users. High performance, improved cleaning, lower costs. Sustainable and secure for future use as your forever solvent.

COMPONENT CLEANING FOR OXYGEN SERVICE

Cleaning for oxygen service is best defined as the removal of combustible contaminants from the surface of any equipment or system in oxygen service. Essentially, any component that may encounter an oxygen rich environment.

The combustible contaminants include organic and inorganic substances such as hydrocarbon material for example oils and greases, paper, fibre, dust, and soils. If these contaminants are not removed properly, in a worst-case scenario, this can cause combustion or explosion in an oxygen atmosphere or at the least rejection of the product due to unacceptable product purity.

Oxygen is not flammable, but it supports combustion. Oxygen can react with most materials. The higher the oxygen content and/or pressure in a system the more vigorous the combustion and the lower the ignition temperature required. Materials that do not normally ignite in air will burn and may explode in an oxygen rich environment. In addition, the oxygen rich environment will give rise to a higher flame temperatures and combustion velocity with potentially devastating consequences.

The recognition of oxygen’s reactivity has led to stringent requirements regarding the cleanliness of equipment in oxygen service. Strict guidelines exist to ensure that care must be taken in the selection of equipment including all materials and components, which all need to be oxygen compatible. They must also be free from combustible contaminants as described above.

Special consideration must be given to any cleaning processes employed in the manufacture and maintenance of all components of oxygen service systems. There are many options depending on the type of contaminants from aqueous to semi aqueous and blasting systems to remove welding slag etc. These are all referenced in the publications in the addendum below and we refer particularly in this article to the European Industrial Gases Assn (EIGA) DOC 32 4.3.1.2 Solvent Cleaning.

Solvent cleaning offers huge benefits in cleaning processes. ProSolv 5408e  our NEW sustainable solvent is especially relevant for this use. Energy saving, totally recyclable, environment friendly zero ODP and GWP and safe for operators. High output, very fast process times, non-flammable, an excellent solvent for all the oils, greases and other organics which need to be removed after manufacturing processes and it is compatible with all types of metals and equipment, from immersion cleaning in simple multi tank counter current processes to integrated vapour and vapour liquid tanks with and without ultrasonics. EnviroTech Europe have extensive partnerships with equipment manufacturers through our distributors worldwide and information and advice on solvents and solvent systems and which need to be considered Some of these are discussed below.

Specific consideration must be given to the following:
· Cleaning standard to be achieved (how clean is clean?)
· Cleaning procedure
· Solvent cleaner to be used.
· Surface properties of the parts to be cleaned.
· Shape and geometry of the material
· Types and amounts of contaminants.
· The degree of automation required.

The size and capacity of the equipment is determined by:

  • The size of the material or components to be cleaned.
  • The required throughput.

Your starting point should be the cleaning standard and procedure. Solvent cleaning and solvent vapour phase cleaning of components consists of the removal of contaminants by immersion in the solvent, possibly with the addition of ultrasonic agitation and the action of continued condensation of solvent vapour on the component surfaces. The procedure requires that the oxygen equipment, system or component is colder than the solvent boiling point. This allows the vapour to condense on the components and perform a final rinse.

The major significant advantage of solvent cleaning is that vapourised solvent is always pure, and the contaminants remain in the boiling liquid section which requires only periodic cleaning out, thus causing a reduction in the frequency of system downtime.

The effectiveness of a particular cleaning agent depends upon the method by which it is used, the nature and type of the contaminants and the characteristics of the article being cleaned, such as size, shape, and material. Final evaluation of the cleaning agent should include testing of actual products and production processes.

All equipment must, together with the cleaning chemistry, comply as a minimum with current legislation for health, safety and environment. The efficiency is controlled by utilising typical samples, written procedures and requested criteria for cleanliness.

INDUSTRY STANDARDS FOR CLEANING OF EQUIPMENT AND COMPONENTS

As part of the programme of worldwide harmonisation of industry standards, the European Industrial Gases Association, (EIGA) has published EIGA Doc 33-18, Cleaning of Equipment for Oxygen Service. The publication was developed from the Compressed Gas Association Document G-4.1 Cleaning Equipment for Oxygen Service and the EIGA Document, Doc 33 Cleaning of Equipment for Oxygen Service.  For information see EIGA’s website.

FURTHER INFORMATION
Please visit our website https://www.envirotech-europe.com/prosolv5408e for information about other uses and applications for ProSolv 5408e.

Visit www.envirotech-europe.com/applications-and-case-studies for information about uses and applications for all EnviroTech Europe products.

For more advice, please telephone us on +44 (0) 20 8281 6370 or use our website contact form.

All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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Related Posts

Aquus CL-One Concentrated all-purpose cleaner

Aquus CL-One all-purpose cleaner

Aquus® CL-One concentrated all-purpose cleaner – Water based cleaning and protection of metal surfaces prior to powder coating or painting.

Aquus CL-One is an excellent all-purpose cleaning system  for the cleaning and protection of mild steel and ferrous metal parts which need powder coating or painting immediately or when it is necessary to store unpainted for limited periods. Any cleaning system can be used – hand wiping, dip tanks, ultrasonics or pressure washing.

Uncleaned metal components or fabrications before cleaning are protected by process oils and grease on the metal guarding the surfaces from changes in humidity. Once removed using conventional water-based cleaners flash rusting can occur very quickly during drying.

The unique Aquus CL-One formulation however leaves an invisible barrier on the metal surfaces, after the cleaning process, providing extended corrosion protection during storage, fabrication, or assembly before finishing. The barrier film can be powder coated or painted over without additional rinsing and without affecting adhesion of the coatings.

General purpose cleaning

Aquus CL-One is also an excellent general-purpose concentrated surfactant system containing no solvents which exhibits a unique combination of characteristics that are not found in other commercially available cleaning processes biodegradable, non-flammable, non-toxic at used concentrations and, unlike almost all other surfactant systems, is both hydrophilic (water attracting) and oleophobic (oil-repelling).

Aquus CL-One offers exceptional emulsion-breaking capability in addition to its unusual combination of properties that makes it so attractive for a wide range of industrial applications. In addition to the general cleaner Aquus CL-One, other concentrated cleaners within the range are formulated to offer cleaning solutions for industry specific applications.

One cleaner for all applications

One cleaner for all applications reduces costs by removing the need for multiple cleaning products usually needed to deal with a wide range of soils or contaminants.  Safe for the environment and users, containing no solvents is biodegradable within 30 days. Typical with only one product for all cleaning applications incorrect selection or dangerous uses can be avoided.

Please visit our website https://www.envirotech-europe.com/aquus-cl-one  for information about other uses and applications.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

Share this page:

Corrosion protection for unpainted metal in highly corrosive environments

Tests demonstrate the amazing properties of SuperCORR A corrosion protection spray to protect unpainted metal surfaces from corrosion

corrosion protection

These are photographs of 3 unpainted copper components that were exposed for a month next to the “digester” at a Pulp and Paper Mill. The part marked #1 was the control and not sprayed with SuperCORR A corrosion protection spray.   Half of part marked #2 was sprayed with SuperCORR A and half left uncoated. Component #3 was completely treated with SuperCORR A. The main atmospheric corrosion was from hydrogen sulphide (H2S) gas, produced during the cellulose digestion process, which combines with the atmospheric humidity to form a mild acid. Any unpainted or untreated metal surface, copper, brass, mild steel or alloys of zinc and manganese or magnesium will be corroded by this acid when it condenses on the metal surfaces.

This is especially important in electrical motors and power control systems where these metals are used as conductors or switch contacts on printed circuit tracks and all types of connectors which although sealed in control panels will be exposed whenever the boxes are opened or contactors operated and connectors plugged and unplugged.  In most cases it is not possible to paint these conductive surfaces or apply other forms of protection without loss of conductivity leading to arcing or supply failures.

These tests demonstrate the amazing properties of SuperCORR A to protect unpainted surfaces from acidic corrosion. As an example, copper and aluminium condensers on water coolers usually last about a month in the acidic environment of pulp production facilities because the corrosive atmosphere around the plant corrodes the metal surfaces on fins and connections.

A trial was set up by the works engineering department at the plant who sprayed a new condenser with an aerosol of SuperCORR A corrosion protection spray. This applies a very thin protective film of a proprietary formulation containing extremely long-lasting anticorrosion inhibitors, which also give superior lubrication coefficients and protect components against moisture.  This unique, water displacing lubricant, with synthetic corrosion prevention compounds is tested and proven non-flammable and environmentally friendly without sulphates, chlorides, or other halogens

After a few months the treated condenser showed so little signs of corrosion that further controlled trials were set up to test for long term protection of untreated metal in this extremely corrosive environment experienced in paper and pulp mills, water processing plants and oil drilling rigs.

corrosion protection for metal
metal corrosion protection
unpainted metal corrosion protection

The improvement is clear and demonstrates the savings in costs of parts and labour for maintenance and replacement untreated metal components exposed to these corrosive conditions.

For more information please visit www.envirotech-europe.com/supercorr-a
To discuss the use of SuperCORR A to solve your problems please use the website contact form or phone us, we look forward to hearing from you.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

Share this page:

Latest News

Solvent of choice for critical cleaning of oxygen components and services

Critical Cleaning Solvent

Guide to the standards and use of ProSolv®5408e solvent for critical cleaning of oxygen components and services

The ongoing pandemic has increased the demand for critical cleaning of oxygen components and services to treat patients with the Covid-19 symptoms. The need for respirators and installation of new and extended oxygen systems in hospitals, clinics and care homes with the provision of ancillary pressure reduction and delivery systems has led to a massive increase in demand for the valves, fittings and pipelines which control the supplies from storage tanks and cylinders, all of which need critical cleaning.

The NEW sustainable solvent blend from EnviroTech Europe ticks all the boxes with the perfect profile for a vapour degreasing solvent for critical cleaning.

ProSolv 5408e is a sustainable zero OPD and zero GWP solvent blend for high performance critical cleaning.  This new solvent ticks all the boxes with the perfect profile for a vapour degreasing solvent.

ProSolv 5408e lower boiling point, economical with energy and low solvent losses, faster production, reduced costs, easy handling. Exceptionally low surface tension to penetrate micron sized holes and close contact surfaces.

High KB value for removal of organic residues, compatible with organic and synthetic oils and most plastics and metals, non-flammable, with zero ozone depletion (ODP) and global warming potential (GWP).

ProSolv 5408e is the perfect replacement for trichloroethylene, nPB (n-propyl bromide), perchloroethylene or flammable solvents used in general engineering cleaning processes.

THE SOLVENT OF CHOICE FOR CRITICAL CLEANING

ProSolv 5408e has a unique range of characteristics make it the solvent of choice for critical cleaning applications such as oxygen components and service line cleaning, aircraft avionics and aerospace parts and servicing, precision optics, medical and high vacuum components and electronics.

ProSolv 5408e can be used in most solvent cleaning systems, one tank vapour degreasing or multi tank immersion / vapour tank systems using ultrasonics or flush cleaning for complex mechanical and electronic components with blind holes and channels and close mounted electronics or for removing grinding and buffing soils on surfaces.

ProSolv 5408e is soft on the environment and safer for users. High performance, improved cleaning, lower costs. Sustainable and secure for future use as your forever solvent.

COMPONENT CLEANING FOR OXYGEN SERVICE

Cleaning for oxygen service is best defined as the removal of combustible contaminants from the surface of any equipment or system in oxygen service. Essentially, any component that may encounter an oxygen rich environment.

The combustible contaminants include organic and inorganic substances such as hydrocarbon material for example oils and greases, paper, fibre, dust, and soils. If these contaminants are not removed properly, in a worst-case scenario, this can cause combustion or explosion in an oxygen atmosphere or at the least rejection of the product due to unacceptable product purity.

Oxygen is not flammable, but it supports combustion. Oxygen can react with most materials. The higher the oxygen content and/or pressure in a system the more vigorous the combustion and the lower the ignition temperature required. Materials that do not normally ignite in air will burn and may explode in an oxygen rich environment. In addition, the oxygen rich environment will give rise to a higher flame temperatures and combustion velocity with potentially devastating consequences.

The recognition of oxygen’s reactivity has led to stringent requirements regarding the cleanliness of equipment in oxygen service. Strict guidelines exist to ensure that care must be taken in the selection of equipment including all materials and components, which all need to be oxygen compatible. They must also be free from combustible contaminants as described above.

Special consideration must be given to any cleaning processes employed in the manufacture and maintenance of all components of oxygen service systems. There are many options depending on the type of contaminants from aqueous to semi aqueous and blasting systems to remove welding slag etc. These are all referenced in the publications in the addendum below and we refer particularly in this article to the European Industrial Gases Assn (EIGA) DOC 32 4.3.1.2 Solvent Cleaning.

Solvent cleaning offers huge benefits in cleaning processes. ProSolv 5408e  our NEW sustainable solvent is especially relevant for this use. Energy saving, totally recyclable, environment friendly zero ODP and GWP and safe for operators. High output, very fast process times, non-flammable, an excellent solvent for all the oils, greases and other organics which need to be removed after manufacturing processes and it is compatible with all types of metals and equipment, from immersion cleaning in simple multi tank counter current processes to integrated vapour and vapour liquid tanks with and without ultrasonics. EnviroTech Europe have extensive partnerships with equipment manufacturers through our distributors worldwide and information and advice on solvents and solvent systems and which need to be considered Some of these are discussed below.

Specific consideration must be given to the following:
· Cleaning standard to be achieved (how clean is clean?)
· Cleaning procedure
· Solvent cleaner to be used.
· Surface properties of the parts to be cleaned.
· Shape and geometry of the material
· Types and amounts of contaminants.
· The degree of automation required.

The size and capacity of the equipment is determined by:

  • The size of the material or components to be cleaned.
  • The required throughput.

Your starting point should be the cleaning standard and procedure. Solvent cleaning and solvent vapour phase cleaning of components consists of the removal of contaminants by immersion in the solvent, possibly with the addition of ultrasonic agitation and the action of continued condensation of solvent vapour on the component surfaces. The procedure requires that the oxygen equipment, system or component is colder than the solvent boiling point. This allows the vapour to condense on the components and perform a final rinse.

The major significant advantage of solvent cleaning is that vapourised solvent is always pure, and the contaminants remain in the boiling liquid section which requires only periodic cleaning out, thus causing a reduction in the frequency of system downtime.

The effectiveness of a particular cleaning agent depends upon the method by which it is used, the nature and type of the contaminants and the characteristics of the article being cleaned, such as size, shape, and material. Final evaluation of the cleaning agent should include testing of actual products and production processes.

All equipment must, together with the cleaning chemistry, comply as a minimum with current legislation for health, safety and environment. The efficiency is controlled by utilising typical samples, written procedures and requested criteria for cleanliness.

INDUSTRY STANDARDS FOR CLEANING OF EQUIPMENT AND COMPONENTS

As part of the programme of worldwide harmonisation of industry standards, the European Industrial Gases Association, (EIGA) has published EIGA Doc 33-18, Cleaning of Equipment for Oxygen Service. The publication was developed from the Compressed Gas Association Document G-4.1 Cleaning Equipment for Oxygen Service and the EIGA Document, Doc 33 Cleaning of Equipment for Oxygen Service.  For information see EIGA’s website.

FURTHER INFORMATION
Please visit our website https://www.envirotech-europe.com/prosolv5408e for information about other uses and applications for ProSolv 5408e.

Visit www.envirotech-europe.com/applications-and-case-studies for information about uses and applications for all EnviroTech Europe products.

For more advice, please telephone us on +44 (0) 20 8281 6370 or use our website contact form.

All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

Share this page:

Related Posts

Aquus CL-One Concentrated all-purpose cleaner

Aquus CL-One all-purpose cleaner

Aquus® CL-One concentrated all-purpose cleaner – Water based cleaning and protection of metal surfaces prior to powder coating or painting.

Aquus CL-One is an excellent all-purpose cleaning system  for the cleaning and protection of mild steel and ferrous metal parts which need powder coating or painting immediately or when it is necessary to store unpainted for limited periods. Any cleaning system can be used – hand wiping, dip tanks, ultrasonics or pressure washing.

Uncleaned metal components or fabrications before cleaning are protected by process oils and grease on the metal guarding the surfaces from changes in humidity. Once removed using conventional water-based cleaners flash rusting can occur very quickly during drying.

The unique Aquus CL-One formulation however leaves an invisible barrier on the metal surfaces, after the cleaning process, providing extended corrosion protection during storage, fabrication, or assembly before finishing. The barrier film can be powder coated or painted over without additional rinsing and without affecting adhesion of the coatings.

General purpose cleaning

Aquus CL-One is also an excellent general-purpose concentrated surfactant system containing no solvents which exhibits a unique combination of characteristics that are not found in other commercially available cleaning processes biodegradable, non-flammable, non-toxic at used concentrations and, unlike almost all other surfactant systems, is both hydrophilic (water attracting) and oleophobic (oil-repelling).

Aquus CL-One offers exceptional emulsion-breaking capability in addition to its unusual combination of properties that makes it so attractive for a wide range of industrial applications. In addition to the general cleaner Aquus CL-One, other concentrated cleaners within the range are formulated to offer cleaning solutions for industry specific applications.

One cleaner for all applications

One cleaner for all applications reduces costs by removing the need for multiple cleaning products usually needed to deal with a wide range of soils or contaminants.  Safe for the environment and users, containing no solvents is biodegradable within 30 days. Typical with only one product for all cleaning applications incorrect selection or dangerous uses can be avoided.

Please visit our website https://www.envirotech-europe.com/aquus-cl-one  for information about other uses and applications.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

Share this page:

Corrosion protection for unpainted metal in highly corrosive environments

Tests demonstrate the amazing properties of SuperCORR A corrosion protection spray to protect unpainted metal surfaces from corrosion

corrosion protection

These are photographs of 3 unpainted copper components that were exposed for a month next to the “digester” at a Pulp and Paper Mill. The part marked #1 was the control and not sprayed with SuperCORR A corrosion protection spray.   Half of part marked #2 was sprayed with SuperCORR A and half left uncoated. Component #3 was completely treated with SuperCORR A. The main atmospheric corrosion was from hydrogen sulphide (H2S) gas, produced during the cellulose digestion process, which combines with the atmospheric humidity to form a mild acid. Any unpainted or untreated metal surface, copper, brass, mild steel or alloys of zinc and manganese or magnesium will be corroded by this acid when it condenses on the metal surfaces.

This is especially important in electrical motors and power control systems where these metals are used as conductors or switch contacts on printed circuit tracks and all types of connectors which although sealed in control panels will be exposed whenever the boxes are opened or contactors operated and connectors plugged and unplugged.  In most cases it is not possible to paint these conductive surfaces or apply other forms of protection without loss of conductivity leading to arcing or supply failures.

These tests demonstrate the amazing properties of SuperCORR A to protect unpainted surfaces from acidic corrosion. As an example, copper and aluminium condensers on water coolers usually last about a month in the acidic environment of pulp production facilities because the corrosive atmosphere around the plant corrodes the metal surfaces on fins and connections.

A trial was set up by the works engineering department at the plant who sprayed a new condenser with an aerosol of SuperCORR A corrosion protection spray. This applies a very thin protective film of a proprietary formulation containing extremely long-lasting anticorrosion inhibitors, which also give superior lubrication coefficients and protect components against moisture.  This unique, water displacing lubricant, with synthetic corrosion prevention compounds is tested and proven non-flammable and environmentally friendly without sulphates, chlorides, or other halogens

After a few months the treated condenser showed so little signs of corrosion that further controlled trials were set up to test for long term protection of untreated metal in this extremely corrosive environment experienced in paper and pulp mills, water processing plants and oil drilling rigs.

corrosion protection for metal
metal corrosion protection
unpainted metal corrosion protection

The improvement is clear and demonstrates the savings in costs of parts and labour for maintenance and replacement untreated metal components exposed to these corrosive conditions.

For more information please visit www.envirotech-europe.com/supercorr-a
To discuss the use of SuperCORR A to solve your problems please use the website contact form or phone us, we look forward to hearing from you.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

Share this page:

Cleaning solvent for vapour degreasing in the aerospace industries

ProSolv® 5408 sustainable, economical cleaning solvent for vapour degreasing in the aerospace industries

cleaning solvent

The aircraft and aerospace component manufacturing industries face many critical cleaning applications during manufacturing processes and for finishing where surfaces need to be completely degreased leaving no residues. Although aqueous cleaning would seem to be the method of choice for environmental reasons with new advancements in cleaning solvent chemistry this is often not the case. Vapour degreasing is the most effective process, economical in use with lower energy uses, one tank needing less floor space than multi tank water-based systems and safe for users.

ProSolv 5408e has been developed to be used in place of the traditional chlorinated hydrocarbon solvents, trichloroethylene and perchloroethylene and those based on n-propyl bromide (nPb) which have been phased out for use as vapour degreasing solvents in the EU. The ProSolv 5408e advanced formulation, based on sustainable solvents, has been extensively tested with oils, soils greases and other contaminants from the manufacturing process and with is high KB value all these materials are easily removed to comply with aircraft standards for cleaning and degreasing to the highest levels. No titanium surface cracking or deleterious effects on other metals or composites commonly used for aircraft and aerospace component manufacture have been identified.

The innovative ProSolv 5408e formulation produced by Envirotech Europe ticks all the boxes with the perfect profile for vapour degreasing Soft on the environment with near zero ozone depletion potential (ODP) and very low global warming potential (GWP) its lower boiling point at 48C minimises energy requirements giving reduced process times for greater throughput and comfortably handled critically cleaned parts. The incredibly low surface tension guarantees penetration into micron sized through and blind holes and between close contact surfaces.

Stable in use ProSolv 5408eis safe for users with a high 8hr occupational exposure level of 220ppm. The solvent needs no additives or stabilisers and requires no testing. Sustainable, safe and secure for future use as your forever solvent.


CRITICAL CLEANING FOR THE AIRCRAFT INDUSTRY
A few examples of the many uses are discussed below, our technical service engineers can offer information and advice on critical cleaning in the multitude of other applications experienced in the precision engineering industries.

BONDING OF HONEYCOMB SECTIONS FOR COMPOSITES
An instance of critical cleaning is removal of all contamination from aluminium honeycomb prior to epoxy resin bonding of the formed aluminium skin to produce lightweight high tensile structures for applications such as leading edges on aircraft wings and wind turbine blades.  This is an extremely demanding application, as any residues will prevent the adhesion of the adhesives leading to delamination with potentially disastrous effects.

Due to the high standards of cleaning which are required this process is usually carried out by vapour/liquid degreasing with the traditional chlorinated solvents however due to the increasingly stringent controls on these materials ProSolv 5408e which is fully tested to aircraft industry standards and with its greatly improved environmental and user profile is now increasingly used as the sustainable and safer replacement.

CLEANING FOR CRACK AND FAULT TESTING OF WELDS AND CASTINGS
Another common use in the aircraft industry is in the cleaning of castings and metal fabrications before the use of NDT crack detection fluids. Removal of all surface contamination from manufacturing processes is vital to expose faults. Vapour degreasing and vapour liquid cleaning with ultrasonics is a favoured method due to the excellent solubility of oils and greases and other soils using one tank with very fast processing and parts emerging completely clean and dry. Crack and fault detection in casting and welds is also important in other industries such as railways, automotive engines, and turbines where castings or critical welded fabrications are used. This is particularly relevant as part of the maintenance procedure for refurbishment of aircraft landing gear where surfaces can be heavily contaminated by hard to remove hydraulic oils, rubber and cement dust and grease.

Because this application needs completely degreased, residue free and dry surfaces, the use of slow drying cleaners such as hydrocarbons or water-based cleaners may cause problems as the cracks need to be dry to allow penetration of the detection fluids. Vapour degreasing is the most effective cleaning system for all NDT applications as parts emerge dry from the cleaning process. ProSolv 5408e conforms to SaE-AMS2664 and E1417 99-1/7-1-1 solvent precleaning standard for Penetrant testing in aerospace applications.


CRITICAL CLEANING OF OXYGEN AND GAS SYSTEMS
Critical cleaning of oxygen lines and tanks where no organic residues can be tolerated is another ideal use for this new sustainable cleaning solution. ProSolv 5408e conforms to CGA, ELIGA and Compressed Gas Association standards for this application. We have a series of guides to using ProSolv 5408e for component cleaning to Oxygen standards and recommended cleaning methods involved, available on request.

ProSolv 5408e is produced to consistent quality standards worldwide and is available through a network of experienced and qualified suppliers.

For full product information please visit www.vapour-degreasing.com/prosolv5408e

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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https://www.envirotech-europe.com/mh370/

Corrosion protection for electrical control systems in Wastewater Treatment Plants

SuperCORR A protects electrical control systems against corrosive environments

Protect Electrical Control Systems

Wastewater treatment plants are subject to corrosion and rust from a variety of causes, one of which is Hydrogen Sulphide gas, (H2S). Corrosion is an insidious and costly problem that causes just about every metal and metal alloy to fail over time. Metals in electrical and electronic control systems, components, connectors, and switches are of most concern.

Corrosion is found in almost all process industries including wastewater treatment plants, pulp and paper mills, fertilizer plants, and numerous other industries and is not going away.  Establishing a ‘Preventative Maintenance Program’ that includes corrosion prevention makes it a problem that can be cost effectively dealt with.

One proven and positive way to reduce, if not prevent, corrosion altogether from causing electrical, electronic systems and component failures is by using an ultra-thin film water displacing lubricant material with corrosion inhibiting compound, SuperCORR A has all these properties. 

A proprietary formulation packaged in aerosol cans it uses a non-flammable fast drying carrier solvent. The aerosol is supplied with a flexible tube applicator which allows the protective coating to be applied accurately even in difficult to get to components.

Removal of surface contamination from the metallic contact surfaces on switches and circuit breakers is essential to ensure fault free operation. The aerosol uses the unique
SuperCORR A formulation to lift and remove dust and soils from the metal contact surfaces. An inert compound that neither reduces nor increases the electrical conductivity. SuperCORR A also provides long term protection from corrosion and electrical arcing that can lead to shorts and subsequent circuit failures.

Testing SuperCORR A in corrosive environments
SuperCORR A (MIL-DTL-87177B (Revised MIL-L-87177A) Type 1 Grade B lubricant was subjected to extensive and vigorous Mixed Flowing Gas (MFG) testing at Battelle Laboratories under a U.S. Government contract.

Specifications ASTM B827 and ASTM B845 Class III MFG testing protocol were used. This included gases with high corrosion potentials including Hydrogen Sulphide (H2S), Nitrous Oxide(NO2), and Chlorine (Cl2).

ASTM B845 refers to techniques for mixed flowing gas (MFG) tests containing gases that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. The MFG tests accelerate corrosive degradation processes. Connectors and contacts within closed electronic cabinets may be affected by an environment of different severity than the outside of these cabinets. ASTM B827 outlines procedures for conducting environmental tests involving exposures to controlled quantities of corrosive gas mixtures. Equipment and methods for gas, temperature, and humidity control for tests to be conducted in a reproducible manner are described.

Reproducibility is measured using control coupons whose corrosion films are evaluated by mass gain, coulometry, or by various electron and X-ray beam analysis techniques. Reproducibility can also be measured by in situ corrosion rate monitors using electrical resistance or mass/frequency change methods. Full copies of these tests can be made available on request.

Industrial applications
SuperCORR A has a proven performance record in protecting electrical components, systems, connectors and electronics. The coating will also prevent the ingress of moisture and other contaminants onto the connector surfaces.  These initiate corrosions and cause intermittent component failure or a premature degradation of component performance.

The Battelle Laboratories studies provided data and related processing information validating the benefits of using SuperCORR A. to protect the electrical connectors of line replacement units (LRUs) used in military aircraft avionic applications.

The results of the laboratory and field-testing activities conducted in these studies confirm that SuperCORR A is an extremely effective coating to protect electronics, electrical components and systems including switches and connectors with no compromise of the integrity of the electrical component/system even in very corrosive environments.

As a result of testing on site at a number of private and public companies with the confirmatory work at Battelle Laboratories SuperCORR A is being used to reduce maintenance and repair costs in a range of different industrial applications –  wastewater treatment plants, pulp and paper mills, automotive and heavy equipment industries and in the power production sector oil and gas and renewable energy and in both the aviation and maritime industries.


FURTHER INFORMATION

Please visit our website  www.envirotech-europe.com/supercorr-a for information about other uses and applications.  For more advice, please telephone us on +44 (0) 20 8281 6370 or use our website contact form.

All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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General purpose industrial solvent cleaners

Clarea® industrial solvent cleaners are safe for users and the environment

industrial solvent cleaners

Clarea® solvent cleaners are compatible with all metals, composites and most plastics used to remove dirt, oil, grease, or other contaminants from surfaces without causing harm or leaving residue. They are used as immersion cleaners for component cleaning in manufacturing and engineering industries and as wipe cleaners for large surface areas prior to painting or powder coating.

The environmental concerns and health hazards of the chlorinated solvents used as industrial degreasing agents has led to the formulation of this EnviroTech range of safer cleaning solvents.

What to consider when choosing suitable solvent cleaning products?

Solvents used for cleaning must be highly refined and leave no residues on drying. They need to be highly effective removing oils and soils without causing damage or corrosion of the parts or components being processed and leave minimal residues.

Cleaning specifications vary widely from very demanding automotive and aerospace applications to less demanding applications where critical cleaning is not needed such as pre-used parts or assemblies from the transportation, aerospace, or manufacturing equipment sectors. Heavily contaminated when removed from service these must be free of oils, soils, grease and dirt before disassembly prior to refurbishing and rebuilding. Much of this work will be manual and the considerations for the safety of operators, hand wiping or brush cleaning is paramount.

Clarea® products are aliphatic hydrocarbon based low odour degreasing solvents with specified flash points. They will remove oils, greases, hydraulic fluids cutting fluids and a wide variety of hydrocarbon based protective coatings. Clarea® solvents can be safely used with all metals and composites and most plastic and paint finishes.

Clarea® HC40, ultrasonic and dip systems and can be used with brush or in hand-wipe processes.  Clarea® HC462, is a degreasing solvent with a flash point over 60°C. It is suitable for hand-wipe applications when used externally.

EFFICIENT AND ECONOMICAL

  • Versatile and cost-effective solutions for all your industrial cleaning
  • Minimal odour and low toxicity for operators
  • Multipurpose uses can reduce the inventory of cleaning fluids.
  • Flexible uses – evaporation rates suitable for hand wipe, spray, or immersion tank cleaning
  • Clarea HC40 for brush and hand wiping, air dries. Flash point 40°C
  • Clarea HC62 for spray or immersion cleaning Flash point 62°C
  • Contains no chlorine, other halogens or stabilisers
  • Compatible with all metals and composites and most plastics
  • Excellent pre-cleaner for paint or powder coatings
  • Safe, reliable, environmentally friendly cleaning

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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https://www.envirotech-europe.com/mh370/

Critical cleaning of electronics and electrical components

ProSolv® 5408 new sustainable solvent for critical cleaning of electronics and electrical components

critical cleaning of electronic components

Solvents are used throughout industries where extremely high performance and safety critical cleaning levels are required including aerospace, military and defence, electronics, semiconductor manufacturing, optics, and industrial machining.

ProSolv 5408e is an innovative contemporary highly effective, versatile defluxer developed to not only remove rosin flux, no-clean flux, oil, grease and wax contaminants, but also to eliminate residual halide salts, ions and other polar and non-polar soils and contaminants that often cause component failures with tracking and other issues impacting performance.

Solvents based on conventional chlorinated hydrocarbons have delivered the high standards required for critical cleaning in the past. These chemicals had desirable properties which when combined gave a profile which was perfect for vapour/vapour liquid degreasing when combined with suitable equipment as industrial cleaning systems.

Non-flammable, consistent azeotropes, low viscosity, high liquid density, very low surface tension, and effective wetting enabling them to penetrate tight spaces for optimum cleaning performance. High KB values allows for cleaning a variety of light and heavy soils including particulates, ionic soils, oils, waxes, and greases these are no longer acceptable.

Evolving legislation for ecodevelopment demanded by governments worldwide demand inventive and original formulations for the use of solvents to continue to comply with the increasingly stringent legislation for protection of the environment and, even more importantly, safety of operators who maybe exposed to the products. In applications where formulated blends of halogenated solvents have been used very effectively in the past these are now required by changes in legislation to be phased out of use.

With their 25 years wealth of experience in this field as the inventors of the highly regarded n propyl bromide (nPB) based EnSolv range of precision cleaning solvents EnviroTech Europe created a contemporary new formulation based on recent research and developed a new solvent as a replacement for the “old” technology which has been found to perform just as effectively, but without the negative environmental, health and safety issues.

ProSolv Benefits

Listed above are just some of the benefits from using ProSolv 5408e, your forever sustainable solvent for cleaning and defluxing in the electronics and electrical components industry and an economical and efficient “drop in “for vapour / vapour liquid cleaning systems using legacy solvents. EnviroTech experts with many years of experience are available to guide you through changeover procedures or to advise on equipment.

For full product information please visit www.vapour-degreasing.com/prosolv5408e

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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https://www.envirotech-europe.com/mh370/

Medical Device Cleaning

ProSolv® 5408 high performance vapour degreasing solvent for medical device cleaning

Medical Device Cleaning

Medical device cleaning

Critical cleaning is vital throughout the medical supply industry for safe, successful operations and procedures. Manufacturers of medical instruments, implants and other devices using metals, glass, ceramics and plastics must select a cleaning processes compatible with all these materials of construction, to remove oils and other contaminants from the manufacturing processes. The cleaning system must be proven to be safety critical and to leave no residues on the surfaces of the cleaned parts.

In this short article we discuss the benefits of condensation cleaning with ProSolv 5408e vapour degreasing solvent for medical device cleaning compared to water-based cleaning.

Water based cleaning options

Formulations for water based cleaners use combinations of surfactants to reduce the very high surface tension of water to allow penetration of the cleaning solution into minutes holes and very fine mechanical clearances. The solutions must solubilise oils, greases, cutting fluids, grinding and buffing compounds and remove particulate soils. Biocides are also present in these formulations to ensure no bioburden is carried over from the cleaning process.

After cleaning residues of chemicals must be removed or they may be a source of corrosion when the devices are in use. Multiple rinses in hot and cold de-ionised water using agitation of baskets or carriers or ultrasound to dilute and displace the cleaning liquids retained in minute holes, cavities and trapped between close tolerance metal surfaces.

Continuous production of high-quality deionised rinse water is extremely expensive, but the drying process is even more costly and environmentally challenging. Multiple cleaning and rinse tanks and drying ovens or tunnels need a lot of space and energy. Further controlled conditions are needed to cool parts after drying to prevent condensation of moisture, which can be growth media for bacteria, on the critically clean surfaces, before packing in sterile bags and containers for storage or shipping.

High output water based cleaning equipment can use conveyorised high pressure targeted spray tunnels for automated high-volume production with integrated “blow off” drying and conditioning tunnels.

For smaller scale operations systems are available using baskets in single cell dishwasher type equipment or open tanks. The latter can use manual or automated handling to progress baskets through the cleaning cycle using similar aqueous based chemical formulations with multiple deionised water rinses and a separate drying oven. These systems can process several baskets or carriers at a time so are only suitable for small batch production. In either case long process times will determine the size and complexity of installations.

Compare the complications of water-based processing to the simplicity and speed of vapour degreasing using ProSolv® 5408e solvents

Vapour degreasing or more properly condensation cleaning, is a proven process where a non-flammable halogenated solvent, safe for people and the environment is heated in the sump of a tank. Boiling solvent produces a dense vapour which is contained by condensation coils around the inner surfaces at the top of the tank. Solvent condensed on the coils is returned to the sump for reuse in a closed cycle.

Parts to be cleaned at ambient temperature are immersed in the vapour which condenses as solvent on the surfaces of the devices or parts in a continuous stream of perfectly clean solvent until the surfaces reaches vapour temperature when condensation ceases. Vapour degreasing uses only one tank with one liquid. Parts are cleaned, rinsed and dry in 3 to 5 minutes with parts hand hot ready for further processing, storage or packing into sterile packs for shipping.

ProSolv 5408e solvents were developed to provide superior critical cleaning performance for manufacturers of medical devices and equipment. The solvent is stable when used for vapour degreasing or cold dip cleaning and compatible with metals, including titanium, ceramics, glass and most plastics used in producing orthopaedic implants, dental, ophthalmic and surgical tools, lenses etc. ProSolv 5408e is a cost effective and sustainable solution to remove polar and non-polar soils and other contaminants and sets the standard for removal of machining and cutting oils, coolants, greases, grinding, buffing and polishing compounds, while leaving no residue.

Vapour degreasing and dip cleaning with ProSolv 5408e is a very effective steriliser of microbial contaminants. Exposing the microorganisms, which have cell walls made up of organic materials including lipids (Fats), to a powerful solvent is a very efficient disruptor of the cell walls. Once compromised the organism’s inner workings lose this protection and the organism dies reducing the bioburden.

ProSolv 5408e is also an excellent solvent carrier for organic or synthetic medical lubricant. This application for coating needles, cannulas and instruments needs consistent quality and evaporation rate to produce, comfortable, pain free insertion for patients.

In many medical applications oxygen and gas supply systems are needed and cleaning at installation and when extensions of pipework and fittings are added is vital for safety. ProSolv 5408e removes oil and organics leaving residue free, dry surfaces to standards approved by gas supply companies, and is compatible with all metals.

Clearly solvent cleaning and vapour degreasing with ProSolv 5408e is a better choice than water cleaning. Faster throughput, lower costs and sustainability to meet the unique challenges in achieving the high standards demanded for medical device manufacturing.

ProSolv 5408e is manufactured in UK with excellent customer service, technical support and training from qualified distributors throughout Europe.

For full product information please visit www.vapour-degreasing.com/prosolv-medical

We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.

For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.

All products are supplied and supported by EnviroTech Europe Ltd.  Manufactured in the United Kingdom and available on short delivery times through our dedicated team of qualified distributors in Europe and the Middle East.

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https://www.envirotech-europe.com/mh370/

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