elastomeric firestop sealant for sale, brand-new and used.

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3M Fire Barrier Water Tight Sealant 1000 NS is a non-slump silicone with up to 3-hr Penetration/Joint Firestop.  1000 NS is a fire barrier, smoke seal, sound barrier, water barrier and elastomeric.  Price reflects cost of one 20 oz sau

3M Fire Barrier Sealant FD 150+ is a 4-hr fire barrier with a STC56 sound barrier rating, elastomeric rating, and L-Rated smoke seal that guarantees up to 3-hr Penetration and 4-hr Joint Firestop.  Price reflects cost of one 20 oz sausage.