SpecSeal® LC Endothermic Sealant is a high‑performance, latex‑based gun‑grade firestop sealant designed for construction joints and non‑combustible penetrations in fire‑rated assemblies. Once applied, LC Sealant cures into a flexible, durable fire‑ and smoke‑resistant barrier, helping maintain the fire performance of walls and floors. During fire exposure, SpecSeal LC Endothermic Sealant activates by absorbing heat and releasing water vapor, creating a cooling endothermic reaction that slows the progression of fire, smoke, and hot gases. Engineered for long‑term reliability and ease of installation, LC Sealant offers a code‑compliant solution suitable for commercial, industrial, and high‑rise construction environments requiring dependable joint protection.

Features

• Installer Friendly, easily applied with standard caulking gun
• Can be troweled on for larger applications
• Tested for up to 4 Hours of fire resistance when tested to ASTM E1966/UL2079, ASTM E814/UL1479, and CAN/ULC-S115
• Listed in over 80 UL Tested Firestop Systems!

20 oz sausage
12 pcs/ctn