Soudal B1 Gun Grade Fire Rated Foam

Gun Grade FIRE RATED one component, expanding polyurethane foam filler. Rapid curing. Excellent thermal and acoustic insulation properties. Excellent primerless adhesion on most construction materials.

For use in passive fire protection systems as a large gap filler; installation of fire retardant window and door frames; sealing of expansion and connection joints, penetration seals. Thermal and acoustic insulation around doors and window frames, pipe penetrations, insulation and roofing materials and general construction.

Shake the aerosol can for at least 20 seconds. Surface should be free from grease and dust. Moisten surfaces with a water sprayer prior to application. For non-conventional substrates a preliminary adhesion test is recommended. Fill holes and cavities for 2/3, as the foam will expand. Repeat shaking regularly during application. If you have to work in layers repeat moistening after each layer. Fresh foam can be removed using Soudal Gun & Foam Cleaner or acetone. Cured foam can only be removed mechanically or with Soudal PU-Remover.

Featured properties
Fire rated polyurethane foam filler
EN1366-4 – Fire resistance, up to 4 hours depending on joint configuration
Fire class DIN 4102 B1
Acoustic rating – 58 dB
Insulation factor – 36mW/mK