STI Specseal LC120 Endothermic Latex Firestop Sealant, 600 ml, Sausage Tube – Fire Rated Caulk for Pipe, Wall & Floor Penetrations

Description

Protect your building against fire and smoke spread with the STI LC120 Specseal Endothermic Latex Firestop Sealant, a premium fire-rated caulking solution trusted by contractors, fire safety inspectors, and building professionals across Vancouver and BC.

This single-component, water-based endothermic sealant is specifically engineered to seal joints, penetrations, and gaps in fire-rated walls, floors, and partitions. When exposed to heat, it releases water vapor that cools the area and slows fire progression — making it ideal for commercial, industrial, and residential fire-stopping applications.

Key Features:

• Endothermic latex formula – absorbs heat and releases moisture to actively resist fire spread
• 600ml sausage pack – compatible with standard sausage/foil pack caulking guns for clean, efficient application
• Easy tool and water clean-up – low VOC, low odor, non-hazardous formula
• Excellent adhesion – bonds to concrete, drywall, metal, wood, and most common construction substrates
• Paintable and sandable once cured, for a clean finished look
• Flexible and durable – accommodates joint movement without cracking

What's Included:

• 1 x STI LC120 Specseal Endothermic Latex Firestop Sealant – 600ml Sausage Pack
• Product compatible with standard 600ml sausage/foil pack caulking guns (gun not included)