WHITE LIGHTNING FLAME BUSTER W44117010 Silicone Sealant, Red, -20 to 122 deg F, 10 oz Cartridge
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White Lightning® FLAME BUSTER® fire & smoke blocking silicone sealant is designed to block the spread of smoke and fire. It forms a water-resistant seal that will also resist smoke and toxic gases, ultraviolet radiation and ozone.
California residents see Prop 65 WARNINGS