Are you a little Rusty?
Testing anti-corrosion coatings
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It’s a sad fact of life that most metals corrode, and even sadder that not all of the anti-corrosion coatings work as well as they should. Most are reasonable at keeping out liquid water, but when it comes to water-vapour and oxygen, the story isn’t as good. And that’s why so many things go rusty!
Fortunately, a new instrument from Versaperm can now help to sort out the problem. The Versaperm Permeability meter can measure the amount of water, oxygen, or almost any other gas, that can flow through a sample of the coating. With some coatings you can get an answer in as little as thirty minutes, whereas with conventional Gravimetric techniques it usually take several days or often weeks.
Corrosion is a massive drain on both industry and infrastructure. Damage caused by corrosion, in the US, alone cost a stunning $B140 in 2001. Appropriate coatings could slash this cost simply by reducing the oxygen needed to fuel these often rapid chemical and electrochemical reactions.
The permeability equipment is easy to use, requiring, at most, minimal training, yet it offers high precision and repeatability. It is accurate in the Parts Per Million (PPM) range for many materials and gases, sometimes this is as high as PPB. It can optionally be configured to measure permeability for gases under a wide range of conditions and for almost all gases including hydrocarbons, solvents, oxygen, carbon dioxide, hydrogen, helium and water vapour and much more. The equipment is computerised and highly automated.
Versaperm also offers a comprehensive permeability and diffusive flow lab testing service for companies who don’t wish to purchase their own equipment.
any sales enquiries to Christopher Roberts, Versaperm Limited ,
10 Rawcliffe House, Howarth Road, Maidenhead, Berkshire, SL6 1AP, UK, Tel: +44 1628 777668,
Press Information please contact Gerry Palmer @ the Palmer & Rose
Partnership. Tel 01494 637499, fax 0871 900 3898 e.mail firstname.lastname@example.org.