Gasket Sealant Slow Dry Flexible Cure 11 oz. Black Temp Range -65 to 400 Degrees F Specific Gravity 1.50 Viscosity Paste Full Cure 24 hr. Begins to Harden 4 hr. Substrates Aluminum Brass Iron Steel Cork Glass Rubber Felt Plastic Seals Flanges Fittings Connections and Flexible Assemblies Against Leakage Used for Cover Plates and Threaded and Hose Connections Standards Meets Mil Spec Mil-S-45180D Type II