A one-part, ready-to-use, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies. Often used to fill voids in large openings and/or complex firestop systems. Provides up to 4-hours of fire protection. Dark red moldable putty stick.
Protective and moldable putty that helps prevent the spread of fire, smoke and noxious gas. Acts as a draft and cold smoke seal for systems with L-Ratings. In addition to its fire-resistant properties, this material has airborne sound reduction characteristics which helps minimise sound transmission through assemblies requiring an STC rating. 
Meets the intent of LEED® VOC guidelines.

• Firestop tested in accordance with AS1530.4 and ASTM E 814 (UL 1479)
• 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, re-enterable

Specifications
Brand: 3M™
Consumer Label: No
Fire Rating: 4 Hour
Length: 279 mm
Product Type: Moldable Putty Stix
Smoke Seal: Yes
Water Tight: No
Width: 36 mm