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.

• 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!