3M Fire Barrier Moldable Putty Pads MPP+ (20 Count)

3M™ Fire Barrier Moldable Putty Pads MPP+ won't dry out or crumble. Pliable one-part intumescent firestop material is designed for wall openings and through penetrations Provides draft and cold smoke seal, helps reduce noise transfer Firestop tested for through penetration and membrane applications for up to 4 hours in accordance with ASTM E 814 (UL 1479) Excellent adhesion to a wide range of construction materials Non-corrosive to metal, and compatible with synthetic cable jackets Applied by hand, with no mixing or tools Our 3M™ Fire Barrier Moldable Putty Pads MPP+ are a one-part firestop material used in various fire-rated assemblies, such as electrical box protection. Designed to prevent the spread of fire, smoke and noxious gasses, this intumescent material comes ready to use in convenient 1/10” (2.54 mm) thick pads that are conformable by hand with no mixing or tools. Pads are firestop tested up to 4 hours.  Pliable, Conformable and Shapeable for Exacting Coverage For applicat