3M Fire Barrier Silicone Car

3M(TM) Fire Barrier Silicone Cartridge 2000+, 10.3 Ounces A premium nonslump sealant bonds to most common construction materials to form a flexible seal. Superior Adhesion. Remains elastomeric and is weather resistant. This product is great for through penetrations and may also be used for fire rated construction joints. A silicone sealant that is ready-to-use, gun-grade, one component silicone elastomer that cures upon exposure to atmospheric humidity to form a flexible seal. Provides up to a four-hour fire-rating. Compression/extension recovery or + or - 15% or original joint width.