The Alpha Chem B1 (Rated 4Hr) Fire Foam Expanding Foam Gun Grade 750ml Can is a gun-applied expanding polyurethane foam for sealing joints and penetrations where a fire-rated seal is needed. It offers controlled application for filling gaps around frames, openings and service entries while helping resist fire and smoke spread.

Key Features

• B1 fire-rated foam
• Up to 4 hour fire resistance
• Gun grade for controlled application
• 750ml can

Uses

• Sealing linear joints in fire-rated constructions
• Filling gaps around doors and window frames
• Closing voids around cables and pipe penetrations
• Air sealing around service openings