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December 1, 2016

Trichloroethylene a known human carcinogen

Trichloroethylene formally listed as a “Known Human Carcinogen”.

Replace Trichloroethylene

After many years of being listed as a possible or probable human carcinogen, the widely used solvent trichloroethylene (TCE) has now been listed by the National Toxicology Program (NTP) of the U.S. Department of Health and Human Services as a “known human carcinogen.” Ref; NTP’s 14th Report on Carcinogens (November 3, 2016).

Trichloroethylene is widely used in manufacturing industries as a vapour degreasing solvent but its principal uses are as an intermediate raw material in hydrofluorocarbon chemical manufacture. In the light of a number of human studies showing a causal connection between TCE exposure and an increased risk of kidney cancer, NTP re-evaluated and ultimately reclassified TCE. In addition to cancer risk, other problems that have been attributed to TCE exposure include immunotoxicity, neurotoxicity, reproductive toxicity and developmental toxicity, such as potential fetal cardiac defects.

As a known carcinogen exposure to TCE is highly regulated already in the European Union. From April 2016 its use has required authorisation for specified applications.

The ban on the use of TCE for vapour degreasing, a very widely used cleaning process, causes many problems in the engineering and manufacturing industries where oil and soils need to be removed between stages in the production processes and on finished products. The use of alternative water based cleaners are inconvenient and increase process times and costs.

A safer alternative, EnSolv is available as an established “drop in” replacement for TCE often using existing  vapour degreasing  equipment. For more information on conversion, help or advice from EnviroTech Europe Specialist team go to www.vapour-degreasing.com.

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September 6, 2016

Degreasing And Cleaning – Key Questions To Ask

 

There can be no doubt that manufacturers of metal components have remained keenly interested in the advantages to be found in process cleaning, while being confused by the amount of misinformation that seems presented to them.

 

There can only be two reasons for this. These is an intention to mislead or simply a lack of understanding of the subject.

In any event, the user needs to take time to match what is said to what is fact. Too often companies generalise on the basis that they are not keen for users to look deeply at the subject, yet this is vital if good decisions are to be made.

In the end, the final judgement of the user is what matters but how many people express frustration at some of the suppliers they have met who spent more time criticising a proven product rather than validating their own.

Too often, suppliers are advising what not to do rather than dealing with what really works. This is negative selling and appears on the increase as the market shrinks, regulation gets tighter and independent specialists are more limited in numbers.

Recent history suggests that larger suppliers rely on their size to justify their competence when in fact the really satisfied customers are saying smaller companies with real specialists provided the best solutions.

No one can argue against the fact that the popular choice for metal cleaning and degreasing is still vapour degreasing. This is confirmed by the companies involved in making machinery for degreasing. The order books are heavily stacked in favour of vapour degreasing. If there is one slight disadvantage currently, lead times are often 20 weeks to delivery of machines.

It is clear though that these highly cost-effective systems, which use very little solvent, are likely to remain the first choice for some considerable time.

Arguments related to the Solvent Emissions Directive carry little weight with modern machines as they are so well engineered that they are compliant with regulatory requirements. If there is one common request made by users it remains that they wish there was a single company capable of offering the total solution, e.g. both their own product and machinery together. This would shorten the circle and place more pressure on the supplier to be responsible for promises made.

Most machinery companies work with a multitude of chemistry suppliers, since they want the maximum sale of machines, but should disputes arise this can be a protracted problem as it’s easy to blame someone else for the issues involved.

Much is said about vacuum and hermetically sealed systems being the best solution. They are certainly the most expensive. Speak to an independent specialist to ensure you know the limits of these machines and the cost benefits of alternative designs.

Suppliers who claim aqueous systems are superior need to ensure they advise the user that more energy, more space, longer cleaning cycles more risk of residues and waste disposal issues should be taken into account. Global warming is an issue for all of us so factor in the amount of energy required for heating and drying. To accept that water is safer or better, needs to be well argued. Never forget that water-based cleaning solutions need changing regularly and the oils and metals produced by these processes are waste and needs correct and very expensive disposal.

When considering vapour degreasing it will often be suggested that product transfer systems attached to the existing open-topped machine bring a number of benefits. For handling benefits it is true but never doubt they will not contribute to reducing your consumption, so will do nothing for emission targets.

The best way forward is to make a supplier talk to you about their own product. Beware of those who distract you from this. If a claim is made that seems suspect, ask for the claims to be made in writing. Transparency is a vital ingredient in any relationship with your supplier.

The target audience for most suppliers are those using the carcinogen Trichloroethylene. This is now banned for general use and requires specific authorisation for use in cleaning applications. Do your research, set the questions and insist on the evidence for the arguments put forward. Protecting your business, your staff and the community around you gives a sound basis to ensure a real assessment.

For more information about Vapour Degreasing Solutions please visit our website:

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February 11, 2016

Don’t Miss The Trichloroethylene Deadline

Filed under: News — Tags: — admin @ 6:13 pm
Replace Ttrichloroethylene

Trichloroethylene due to be phased out in April 2016.

ProSolv is a new, less expensive fluorinated solvent formulation for all precision cleaning applications.

ProSolv the  new critical cleaning solvent has been developed by EnviroTech Surface Technologies as a “drop in” cost effective alternative which is less expensive than the current fluorocarbon formulations you may be using.

ProSolv offers future proof cleaning systems giving long term savings without compromising quality. Substitution is simple with no changes to equipment or control settings needed.

Users of trichloroethylene, which is due to be phased out as a cleaning solvent in April 2016, only 3 months away, may be able to use ProSolv as a cost effective replacement in many applications.

ProSolv is friendly to the environment it has zero Ozone Depletion Potential (ODP) and a very low impact on global warming. In addition, it is a non-flammable stable azeotrope needing no testing for acid acceptance or stabilising additives, easy to use and maintain and safer for employees and the workplace.

ProSolv like many other fluorinated solvent azeotropes is extremely effective for precision cleaning in hightech industries such as aerospace, aviation, electronics and medical due to the use of an additive trans 1,2-dichloroethylene.

This produces a powerful fluorinated cleaning solvent with a very low surfaces tension which cleans blind holes and the smallest gaps more effectively at a lower cost. With these wide range of properties ProSolv is particularly effective used with ultrasonics.

ProSolv can usually be used in existing degreasers or sprayed from an aerosol container. Our fluorinated solvents are ideal for the cost-conscious user for precision cleaning and degreasing of electronics, metals and glass.

ProSolv can be used to remove adhesives, fluxes, pastes, buffing compounds, greases, silicone oils, particulates, resins, waxes and other oils and soils.

ProSolv is only one of a wide range of cleaning solvents and solutions produced by engineering cleaning specialists EnviroTech Surface Technologies. Our Technical Centre in Essex is available for you to visit to test clean your components with ProSolv or compare results with the other products such as EnSolv or Clarea solvents we supply. Our technical team have extensive knowledge of equipment and systems to help you find the most effective, budget-friendly, future proof and environmentally conscious solution for your business. EnviroTech Surface Technologies have distributors located across the E.U. and Middle Eastern countries all of whom can offer technical advice and support.

Click here to visit the ProSolv website

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EnviroTech Surface Technologies
A Complete Range Of Metal Cleaning And Surface Treatment Solutions

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