is polyethylene flammable
Flexible Polyurethane Foam Flammability. Flexible polyurethane foam (FPF) is an organic material and, like all organic materials, is flammable. Organic materials include a variety of common substances including wood, paper, cotton, wool, nylon, polyester, polyethylene, and polystyrene and other plastic materials. Polyurethane Foam Association members have provided their customers with educational materials about FPF flammability for more than 20 years.