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Degreasing and cleaning – key questions to ask

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By Envirotech Europe on

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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.

Envirotech Europe

EnviroTech Surface Technologies supply a complete range of metal cleaning, surface treatment and protection systems which are cost effective, energy efficient and safe for users and the environment. Products are supplied through a qualified network of distributors throughout the UK and Europe.

Contact Supplier Visit our website 0208 281 6370

The Best In Surface Treatment

EnviroTech Surface Technologies supply a complete range of metal cleaning, surface treatment and protection systems which are cost effective, energy efficient and safe for users and the environment. Products are supplied through a qualified network of distributors throughout the UK and Europe

Products and Services
Ensolv – Vapour Degreasing Solvents For Precision Cleaning
Environmentally friendly precision vapour degreasing and cleaning solvents for the aerospace, precision engineering, medical, optical and electronic industries.

EnSolv vapour degreasing solvents are the most effective alternative to trichloroethylene which is due to be phased out of use in Europe during 2016. Fast economical cleaning and degreasing in one tank using minimal floor area.

Aquus – Water Based Metal Cleaning And Pretreatment Processes
A range of innovative and sustainable water based metal cleaning and surface treatment products which prepare parts and fabrications for painting, powder coating or electroplating.

Phosphating systems are available to meet the needs of all manufacturers from office furniture to household appliances and for other more demanding applications in transport, aerospace, construction, oil and marine industries.

CORR-EX – Corrosion Protection Solutions
Specialist barrier film corrosion protection products, based on synthetic materials to provide safe, effective, environmentally friendly solutions to lubrication and corrosion problems.

Our solutions help to lubricate and control corrosion, and are unexcelled in preventing deterioration and contamination. Solutions for derusting, passivation, sealing and anti-corrosion packaging are also included in our product range.

Clarea – Industrial Degreasing Solvents
Environmentally safe wipe, brush, dip and immersion cleaning solvents for removing dirt, oil, grease and other contaminants from surfaces without causing harm or leaving residue.

A growing concern regarding environmental issues and health hazards of the most commonly used chlorinated solvents as degreasing agents has led to the formulation of this range of safer industrial cleaning solvents.

  • Our products and treatments offer a combination of benefits:
  • Cost effective solutions for all your metal cleaning and surface treatments needs
  • Processes are safe, environmentally friendly and energy efficient
  • Excellent customer service, technical support and training from qualified distributors throughout Europe

ProSolv – lower cost high performance fluorocarbon cleaning solvent

ProSolv – enables high performance cleaning at lower cost than other fluorinated solvent cleaners.A proprietary tertiary azeotropic formulation based on a fluorinated solvent which can be a direct replacement for chlorinated solvents ProSolv is extremely stable and simple to use meeting all the increasingly stringent legislative demands for safer, non flammable solvents with low environmental impact for the precision engineering and electronics industries

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