White Lightning Fire and Smoke Blocking Adhesive Caulk, 10 oz, Cartridge
This premium 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.
For use on: copper and other metal through-penetrations
Will withstand temperatures up to 300 ˚F
Can be applied in temperatures ranging from
-20 ˚F to 122 ˚F
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