Specified Technology STI SpecSeal Firestop Mortar

This product is a Portland cement-based sealant that is lightweight and more cost-effective than most other products. This mortar also costs high-level resistance and protection against fire. Easily applies into concrete walls and floors. Mortar cures quickly and will not spall or crack due to freezing or changes in temperature. Property Value Color Pale Pale Red Odor No perceptible odor Density Mixed (Wet) 53 to 80 lb/cu. ft = 7.1-10.7 lb/gal (0.85-1.28 kg/L) Density (Dry Mortar) 24 to 26 lb/cu. ft = 3.21-3.4 lb/gal (0.38-1.42 kg/L) Flame Spread 0* Smoke Development Less than 5* Application Temperature 35°F (2°C) to 100°F (38°C) In Service Temperature -10°F (-23°C) to 200°F (93°C) Storage Temperature No Limit Ratio of Water/Mortar 17.4/22 to 22/22 Yield (Per 22 lb.) 1,250 cu. in (20.5 L) to 1,400 cu. in (22.9 L) Open Time 30 Minutes working time Shelf Life No Limit *Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and