Everbuild B1 Expanding 4hr Fire foam Gun Grade 750ml
Pack of 1 B1 4 hour quick setting fire foam a one part polyurethane Expanding foam with B1 fire retardant properties.
Expands on application to up to 50 times its original volume
Meets the extremely stringent requirements of DIN 4102 Part 1 for Construction Materials Class B and BS476 Part 20 (1987) where fire ratings up to 4 hours are achievable.
High degree of fire rating slows down the passage of flames & smoke.
Quick setting - can be cut, sawn or plastered in 1 hour.
Economical in use - expands up to 50 times its original volume.
Fills irregular and broad gaps where most conventional fillers would fail.
Possesses insulating and Acoustic sound deadening properties.
Demonstration Video on how to use gun grade Expanding PU Foam
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