3M™ Fire Barrier Moldable Putty Pads, MPP+, 7 in x 7 in (17.8 cm x 17.8 cm)

• Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Wall opening protective material tested up to 2 hours in accordance with UL 263
• Provides draft and cold smoke seal
• Helps reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
• Halogen-free formula
• Pliable and conformable (molds easily into required shapes)
• Self-adhering pads can be joined together for larger firestop applications
• Noncorrosive to metal and compatible with synthetic cable jackets
• Will not dry out or crumble, re-enterable

The 3M™ Fire Barrier Moldable Putty Pads MPP+ feature a one-part, ready-to-use, re-enterable, intumescent putty that can be easily formed to firestop wall-openings and through penetrations in fire-rated assemblies.

The 3M™ Fire Barrier Moldable Putty Pad provides up to 4 hours of fire protection. This protective and moldable putty helps prevent the spread of fire, smoke and noxious gas and acts as a draft and cold smoke seal for systems with L-Ratings. In addition to its fire-resistant properties, the 1/10th inch (2.5 mm) thick pads have airborne sound reduction characteristics which helps minimize sound transmission through assemblies requiring an STC rating. This putty meets the requirements of key life safety codes, including the International Building Code (IBC), NFPA 5000, NEC (NFPA 70), NFPA 101 and NBC (Canada) Building Codes. It also meets the intent of LEED® green building program credits VOC environmental regulations.

Suggested Applications

• Typically used for wall opening protection of membrane penetrations by metallic and non-metallic electrical outlet boxes to meet building code requirements
• Used to seal gaps between cables in multiple penetrations (including fibre optic inner duct) and to firestop cable bundles, insulated pipe, electrical conduit, metal pipe and other through penetration