BOSS 813+ Fire Retardent Foam is a one-component, self-expanding, ready to use PU-foam, which contains HCFC and CFC-free propellants which are not harmful to the ozone layer. The product also has fire-retardant characteristics, according to the European standard EN 1366-4. It has high acoustic insulation properties, in addition to its thermal insulation characteristics. Colours: This product is available in pink. Packaging: Available in a 750 ml aerosol can.