3M™ Fire Barrier Moldable Putty Stix MP+ is a one-part, halogen-free product designed to firestop electrical outlet boxes and a wide variety of through-penetrations including cable, conduit, insulated pipe and metal pipe, which penetrate fire-rated construction.
Pliable. Easy to mold into any shape. Adheres. Sticks well to most surfaces but not to the applicator's hands. Conformable. Pads easily conform and adhere to a wide variety of metallic and non-metallic electrical outlet boxes. UL Listed. Wide range of UL Listed systems. Ages Well. Excellent aging properties.
Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) &CAN/ULC S115
Provides draft and cold smoke seal
Often used to fill voids in large and/or complex firestop systems
Pliable and conformable (molds easily into required shapes)
Helps reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
Noncorrosive to metal and compatible with synthetic cable jackets
Will not dry out or crumble
Typically used to seal gaps between cables in multiple penetrations (including fiber optic inner duct) and to firestop cable bundles, insulated pipe, electrical conduit, metal pipe and other through penetrations.