Firefoam B1 Sealant for Fire Doors & Frames
Product Description
Firefoam B1 is a quick setting fire rated one part polyurethane foam. It expands on application and meets the extremely stringent requirements of the test criteria BS 476 Part 20 (1987) for Construction Materials; Class B1. Once cured, the foam can be cut, sawn or plastered over, after approximately one hour.