3M™ Fire Barrier Moldable Putty Stix MP+, Red

3M™ Fire Barrier Moldable Putty Stix MP+ is a one-part, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies. 3M formulated this dark red, easily moldable putty stick to provide up to 4 hours of fire protection. These putty stix also produce a draft and cold smoke seal and help reduce noise transfer.

Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) & CAN/ULC S115

Putty provides draft and cold smoke seal

Pliable and conformable design easily molds into required shapes

Helps reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)

Will not dry out or crumble for a re-enterable and repairable solution

Excellent adhesion and aging properties provide a long-term performance