STI Firestop

Intumescent Firestop Red Fire Caulk

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SpecSeal® SSS Firestop Sealant is a premium grade water-based Intumescent firestop sealant. SpecSeal® SSS Sealant incorporates our proprietary two-stage intumescent technology making it the go to choice for any combustible or non-combustible penetrants. As little as a 1/2″ applied depth of SSS Sealant is required to provide up to a 4 Hr Fire resistance rating when tested to ASTM E814/UL 1479.
More Information
Manufacturer STI Firestop
Weight 2lb
Country of Manufacture
Product Sheet (411.06 kB)
Safety Sheet (82.76 kB)
Patented Two-Stage Intumescent Technology

Easily works into tight spaces between penetrants

Compatible with CPVC Piping

Can be sanded and painted to match its surroundings

Used in over 500 through-penetration UL® Tested Systems!