Acryrub Firestop is a one-part acrylic latex caulk designed for sealing around through penetrations in fire-rated wall and floor assemblies to maintain or increase those assemblies to their fire-rating. In case of fire Acryrub Firestop forms a flexible shield preventing the spread of fire, smoke and toxic gases through construction openings and wall cavities. Perfect for: Wall & Floor Penetrations, Construction Openings, Soudal Acryrub Firestop has excellent adhesion to many common building materials. ASTM E-814.
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