3M CP25WB Fire Barrier Caulk, 10.1 Oz Framing Squares detergent or more with the

detergent or more with the Rubbermaid All Purpose Canister

Triple layer strength

Design certified and agency listed

Removes paint or varnish in about 1/2 hour

Will not crack or rust

3M CP25WB Fire Barrier Caulk, 10.1 Oz Framing Squares detergent or more with theForms a tight barrier against fire, smoke and toxic fumes. Suitable for a wide variety of through penetration fire stops, including cable, metal pipe, insulated pipe, glass pipe, construction gaps, HVAC ductwork and certain plastic pipe applications. Cures to form a flexible seal, installs with a standard caulking gun, pneumatic pumping equipment or putty knife. ASTM, FM and U. L. tested for 3 hour fire penetration seal for walls and floors.