DEI Heat Screen - 36" x 40" - Mylar Radiant Glass Fiber Matting - 10401Heat Screen solves the problem of heat from engines and exhaust intruding into interiors and components. Heat Screen offers an excellent way to reflect radiant heat away from a vehicle's interior and because it's flexible and can be trimmed to size to protect against excessive heat sources. Constructed of a high temperature resistant fiberglass material, and with a thickness of only . 060", Heat Screen features a thermal barrier on one side made of a