Firefoam B1 Fire Rated Expanding Foam 750ml

Quick setting one-part polyurethane foam with fire retardant properties. The foam expands on application to up to 50 times its original volume and meets the extremely stringent requirements of DIN 4102 Part 1 for Construction Materials; Class B and BS476 Part 20 (1987) where fire ratings of 30 mins to 3.5 hours are achievable. Once cured, the foam can be cut, sawn or plastered over after only one hour providing the working temperatures (can and surfaces) are between +5 to +25oC, ideally 20oC. Gun operated and is ideal for filling gaps around pipe entries through fire rated walls, to provide a fire rated seal around window and door frames, electrical wire chasing prior to plastering, where a fire rating is required, deep joints prior to applying sealant or plaster also irregular gaps in stone, brick, concrete or plaster. For insulating behind cladding to exterior walls, behind soffit and barge boards and even in automotive applications.

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