How to solve the problem of shrinking EVA foam decking

- Jun 12, 2020-

How to solve the problem of shrinking EVA foam decking


EVA foam decking is made of EVA foam material. eva foam is a thermoplastic polymer material, a polymer with a linear molecular structure. It softens and stretches under the heat of the sun, and shrinks and hardens under severe cold weather, showing the characteristics of thermal expansion and contraction. It should not be directly used for boat yacht, kayak, jet ski and other marine anti-skid decking decoration, it will cause marine flooring shrinkage and aging, so EVA must be modified. The method is to add a cross-linking agent to the EVA. When the EVA film is heated to a certain temperature, the cross-linking agent decomposes to generate free radicals, triggering the bonding between the EVA molecules, forming a three-dimensional network structure, causing the EVA adhesive layer to cross-link and solidify , Can withstand changes in the atmosphere, no longer thermal expansion and contraction. Therefore, the EVA crosslinking degree index plays a vital role in the quality and long life of eva foam decking. A crosslinking degree of 60% or more is considered acceptable.



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