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SKU:97791893
3M Fire Barrier Sealant CP 25WB+ is a one-component, latex-based, intumescent sealant that dries to form a monolithic firestop seal. This sealant also acts as a barrier to airborne sound transmission. As penetrants are exposed to fire, the intumescent property of this material allows the sealant to expand and help maintain a firestop penetration seal for up to 4 hours. This sealant is designed to help control the spread of fire, smoke and noxious gases before, during and after exposure to a fire when installed in accordance with a listed through-penetration or fire-resistive joint assembly system (STC-Rating of 54 when tested in a STC 54-rated wall assembly). 3M Fire Barrier Sealant CP 25WB+ firestops blank openings and penetrations passing through fire-rated floor, floor/ceiling or wall assemblies and other fire-rated interior building construction. This halogen-free sealant is capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C). We engineered this sag-resistant sealant to exhibit strong adhesion to a full range of construction substrates and penetrants. Applied with conventional caulking equipment, this gun-grade sealant offers an excellent caulk rate - no mixing is required. In addition, this water-based sealant is paintable as well as re-enterable and repairable, offering easy application and clean-up.
BUILDING CODE COMPLIANCE – seals openings through fire barriers where mechanical services pass through
HELPS PREVENT FIRE SPREAD - capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C)
ONE PRODUCT, MANY USES – listed in hundreds of UL Firestop systems with up to 4-hour ratings
VARIETY OF APPLICATIONS - HVAC ducts and vents, pipes, blank openings, cables, through-penetrations, busways, combos, rated wall, floor and floor-ceiling assemblies and more
EASY AND CLEAN APPLICATION – with no mixing required and sag-resistant properties, it is simple to apply and doesn’t make a mess
USE IN ACCORDANCE WITH UL SYSTEMS – not designed for applications with continuous exposure to extreme temperatures, such as chimneys
EXCELLENT ADHESION TO A VARIETY OF MATERIALS - engineered to exhibit strong adhesion to a full range of construction substrates and penetrants
SOUND DAMPING - acts as a barrier to help minimize sound transmission
For industrial/occupational use only. Not for consumer sale or use
