White Lightning FLAME Buster Intumescent Silicone Sealant Red
Single-component, neutral cure sealant. Designed to prevent the spread of fire, smoke & toxic gases. When exposed to temperatures above 300° F, it rapidly fills the void left by collapsed materials. Expands to 6 times original volume (at 662° F). Meets ASTM Specifications: ASTM E-814, UL1479, UBC 7-5 & CAN4/ULC-S115M.