Introducing the B2 Handheld Firefoam Everbuild, the superior choice when it comes to fire protection. Containing a fire resistant foam that meets the BS 476 Part 20 test criteria certification. The foam seals and fills to provide up to 2 hours of fire resistant security in certain joint configurations, expanding up to 50 times its original size on application. That makes it suitable for filling large gaps and crevices, ensuring complete safety from potential flames. Get the ultimate protection with the B2 Handheld Firefoam Everbuild - when your safety matters, trust this top-of-the-line foam solution!