• Features
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 complex firestop systems
Provides up to 4 hr of fire protection
Provides draft and cold smoke seal
Pliable and conformable
Helps reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
Non-corrosive to metal and compatible with synthetic cable jackets
Will not dry out or crumble, re-enterable