• Firestop tested for through penetration and membrane applications for up to 4 hours in accordance with ASTM E 814 (UL 1479)
• Applied by hand, with no mixing or tools
• Non-corrosive to metal, and compatible with synthetic cable jackets
• Pliable one-part intumescent firestop material is designed for wall openings and through penetrations
• Provides draft and cold smoke seal, helps reduce noise transfer
• Excellent adhesion to a wide range of construction materials

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.

• Smoke Seal : Yes
• Product Type : Putty Pad
• Fire Rating : 4 Hour
• Product Number : MPP+
• Sound Barrier : 52 in 53
• Product Color : Red
• Water-tight : No
• Color Family : Red