3M Fire Barrier Silicone Sealant 2000 NS, 4.5 gallon, Pail
Premium sealant available in nonslump formula. This product is great for fire rated construction joints and may also be used for through penetrations. Accommodates vibration from normal building movement. Maximum pipe size of 24 inches (609 mm). Compression/extension recovery of + or – 31% of original joint width.