The problem can be made even worse when you realise it may pass through the adhesive as well, and even the manufacturing process can make a big difference.
Versaperm, a specialist in vapour permeation technology, has designed an instrument that can accurately measure this problem - not just for samples of the film but for the complete sealed and finished LED or plasma screen as well. The system even works with the latest flexible screens which can be even more susceptible. The instrument offers an advanced fast and efficient way to test and measure this vapour permeability as well as for electronic enclosures, components, materials, flat samples or even complete products. It is simple to use, fast and extremely accurate.
Results are typically accurate in the Parts Per Million (PPM) range (PPB in some cases). The system can produce results for several material samples, screens or enclosures at a time as well as measure them under a variety of environmental conditions. Optionally, the system can also work with virtually all other common gasses and vapours including hydrocarbons, solvents, and CO 2. Versaperm also offers a laboratory service for companies that only need to test samples on an irregular basis.
Visit Versaperm at www.versaperm.com