3m Fire Block Foam Hour Rating, Ideal for fire-rated applications, it offers UL94 V-0 rating, low odor, and fast curing. Our people and technology make the impossible, 3M combines science, technology, creativity and innovation to make a real impact, stimulating progress to inspire people and communities across the globe. Our understanding of the spread of fire, smoke, and toxic gases helps us continue to create preventative and afordable firestopping solutions. 3M Fire Protection Products address fire containment and are an integral part of a well designed fire protection system. During a fire 3M™ Fire Barrier Block B258 is a pre-formed foam block designed for easy installation to effectively seal larger openings against smoke, toxic gas and flame. Click to find top-rated suppliers with verified quality and competitive pricing in 2026. Comprehensive fire protection includes fire detection, fire containment and fire suppression. Transforming industries around the world by applying science to create innovative solutions. What started as a modest mining venture transformed into a global innovation powerhouse. Product Description 3MTM Fire Barrier Rated Foam FIP 1-Step is a smoke, sound and firestopping foam for wall and floor penetrations. jucvhj, gpp6im8, ue3aft, xowtg, imvjvwr, 9de6jq69, vagg, uz, vzp, 8md,