Moisture curing PU foams in a pressurized canister. Excellent adhesion tomost substrates, and good thermal and acoustic insulation characteristics, Multi-purpose gap-filling, sealing, bonding and insulating, environment friendly, CFC free, HCFC free. Wurth B3 PU foam is a one-component, ready to use multi-purpose Polyurethane foam. It is fitted with a plastic adaptor head for use with a foam application gun or a straw.Wurth B3 PU foam is especially suitable for applications in the construction sector in insulation and installation，also suitable for installation, sound insulation, thermal insulation, high insulation, sealing, moisture-proof, dust-proof, gas isolation, filling structural vacancies, engineering holes and various cracks, etc