Everbuild Fire Rated Expanding Foam (750ml, Gun Grade, B1) is a one-component, moisture-curing polyurethane foam with a B1 fire rating, designed for sealing, filling, and insulating gaps and voids around fire-rated penetrations in walls, floors, and ceilings. The gun-grade formulation is applied using a professional foam gun for precise, controlled dispensing and minimal waste.

Suitable for use around pipe penetrations, cable ducts, door frames, and structural gaps where fire resistance is a requirement. Once cured, the foam can be trimmed, plastered over, or painted. Compliant with fire safety regulations for use in fire-rated construction details.

• Fire rating: B1 (fire retardant)
• Size: 750ml
• Application: Gun grade — requires professional foam gun
• Cure type: Moisture-curing polyurethane
• Suitable for: Fire-rated penetrations, pipe ducts, door frames, structural gaps
• Properties: Expanding, insulating, airtight seal, trimmable when cured

Also available: Everbuild Ever Foam Gun Cleaner 500ml to maintain your foam gun. Browse the full Sika Everbuild range.