What is integral skin foam and its applications?

Prior to the production of integral skin foams, flexible polyurethane foams were predominantly used for manufacturing various automotive parts. However, flexible foams had a thin poor easily damaged skin. In the transportation and automotive industry, where the components were subjected to a lot of friction, this occurrence became a serious problem. Therefore, it was necessary for these foams to have a tough and abrasion-resistant outer skin. To achieve this, the parts were produced in a two-stage process where the required skin was either made from polyurethane itself or other materials such as polypropylene, ABS, PVC, etc., and then bonded to the foam using an appropriate adhesive. Efforts to produce a foam that inherently had the desired skin with the proper thickness led to the development of integral skin foams.

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