Polyimide foam is a good fire-resistant system with thermal and acoustic properties. It is a light-weight, fibre-free, nontoxic foam for insulation in transport applications (also in railways, aircraft). OTHER FEATURES: Environmentally friendly foam, odorless, off-gassing, no toxic smoke when exposed to high-temperature open flame. Fiber-free, it meets all fire resistance standards, like ASTM, ISO, BS. It has acoustic insulation values with a high temp. Stability/ operative range i.e. Minus 190 Deg. – 300 Deg. C. Easy to handle, cut and install. It is open cell and CFC-free foam. Density range: 7 – 30 Kg. /Cu’m