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STI - Firestop Authority
WF300 Intumescent Firestop Caulk
QXO product C-385363 · 2 options
Selected: STC WF320 WD FRAME SEAL SAUS
QXO SKU 385364 · Product number STCWF320
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- UOM
- EA|CTN|SGE
- Item Weight
- 1.92
- Algae Resistance
- No
- Applicable Standards
- ASTM E814 (UL1479) CAN/ULC S115 ASTM E84 (UL723) ASTM E119 (ANSI/UL263) UL Certified FBC System Compatible UL Greenguard Gold Certified LEED
- Packaging
- 20 oz sausage
About this product
BlazeStop® 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.
