B1 Fire Resistant Expanding Gun Grade PU Foam

A high performance, polyurethane expanding foam, fire rated and tested to BSEN 1366-4. Seals irregular gaps and expands over 40 times its can volume. This foam can be used at temperatures from +5?C to +25?C. The cured foam is semi-rigid and predominantly close-celled. It is resistant to temperatures ranging from -40?C to +100?C and to ageing, but not to UV-rays. Noise and heat insulation values are excellent. Available in gun grade or straw aerosol version.