Duct-Seal™ Duct Sealant, Indoor/Outdoor, Water Based, Container Size: 1 gal, Container Type: Pail, Composition: Latex Co-polymer, Calcium Carbonate, Clay, Chlorinated Paraffin (> 3), Methanol (0.5 to 3.45), Form: Mastic, Gray, Odor/Scent: Typical Latex With Slight Ammonia, Specific Gravity: 1.34 to 1.41, VOC: 93g/L, Boiling Point: 212 Deg F, Coverage: Up to 320 Linear Ft at 3 inch Width x 20 mil Thickness, For Use With: For Metal Duct, Glass Fiber Duct Board And Flex Duct, pH Rating: 8.4 to 9.5, Solubility in Water: Miscible with water, > 20 Shore A Hardness, Storage Temperature: 35 to 110 Deg F, 1 yr (Unopened) Shelf Life