Coreva's glass interlayers are engineered to contain peroxide curing agent having sufficient thermal stability to allow the Eva glass interlayer to flow during the early stages of the lamination cycle, wetting out the substrate surfaces and subsequently undergoing cross linking or curing prior to removing from your equipment. Cross linking or curing is the process for converting the thermoplastic Eva into a thermoset Eva that no longer softens or flows upon heat.
The curing process of Eva interlayers result from a hydrogen abstraction reaction. At the elevated temperatures of lamination, the peroxide curing agent thermally cleaves to yield two oxy radicals. The oxy radicals are very reactive and abstract hydrogen atoms from Eva's polymer radicals then combine to form crosslink, commonly referred to as cure.
Cross linking or curing is the process for converting the thermoplastic Eva into a thermoset Eva that no longer softens or flows upon heat.
We have engineered and formulated a superior Eva film that is optically clear and strengths comparable to PVB films.