WF300 Intumescent Firestop Caulk
WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies. Under fire exposure, WF300 expands to up to four times its original volume.
Test Standards
ASTM E814 (UL1479)
CAN/ULC S115
ASTM E84 (UL723)
ASTM E119 (ANSI/UL263)
Third Party Approvals
Applications
Cables
Duct
Head of Wall
Metal Pipe
Plastic Pipe
Properties
Autobonding
Intumescent
Low VOC
Paintable
Permanent
Smoke Barrier
STC Rating
Water Based
Product Details
Features
Specifications
Ordering Information
Features
- Installer friendly, easily applies with standard caulking gun
- Suitable for combustible and non-combustible penetrants
- Tested for up to 3 Hours of fire exposure when tested to ASTM E814/UL1479
- UL® GreenGuard Gold Certified
