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STI - Firestop Authority
SpecSeal® SNS Smoke 'N' Sound Acoustical Sealant
QXO product C-385386 · 2 options
Selected: White
QXO SKU 640514 · Product number STCSNS129W
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- UOM
- CTN|TB
- Item Weight
- 3.4
- Algae Resistance
- No
- Applicable Standards
- ASTM E84 (UL723) UL Greenguard Gold Certified LEED
- Packaging
- 29 oz sausage
About this product
SpecSeal Smoke 'N' Sound Sealant is a high quality acrylic latex sealant designed for sealing through-penetrations (such as pipes, conduits, cabling, busways, openings), membrane penetrations (such as p-traps and outlet boxes) in smoke rated walls. SpecSeal Smoke 'N' Sound may also be used in linear applications such as wall-to-wall and head-of-wall joints where joints are designed to be either static or minimally dynamic. SpecSeal Smoke 'N' Sound Sealant is available in a single grade that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. This single grade may be caulked (standard cartridge or bulk loaded), knifed or troweled. In addition, SpecSeal Smoke 'N' Sound contains no PCB's nor asbestos.



