The STI Firestop 20 Oz SpecSeal SSS Series Firestop Sealant provides robust firestopping protection, sealing through-penetrations in walls, floors, and ceilings to prevent the spread of fire, smoke, and toxic gases. With superior adhesion and flexibility, this firestop sealant accommodates joint movement and maintains integrity under extreme conditions. Ideal for commercial, industrial, and residential applications, STI’s SpecSeal SSS Sealant ensures code compliance and enhances building safety with reliable, long-lasting firestop protection.
- 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!
