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STI - Firestop Authority
SpecSeal WWG Window Wall Gasket
QXO product C-748248 · 1 options
Selected: STC WDW WALL GASKET 8"x30'
QXO SKU 748248 · Product number STCWWGAS8X30
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- Dimension
- 8 in x 30 ft
- UOM
- RL
- Item Weight
- 11.49
- Algae Resistance
- No
- Applicable Standards
- ASTM E2307 CAN/ULC-S115
About this product
SpecSeal Window Wall Gasket is an intumescent rubber gasket embedded with glass fiber mesh designed for edge of slab firestopping in window wall construction. Window Wall Gasket installs between the floor and aluminum framing directly behind the slab closure panel. Under fire exposure, Window Wall Gasket rapidly expands (intumesces) to form a dense, highly insulative char to seal the void against the spread of flames and hot gases.



