For emergency automotive and plumbing repairs of gas tanks, radiators, holes or dents. Use on drums, steel doors, tanks, pipes, wherever metal is missing, dented or broken. Hand mixed with 3 minute working time. Cures in 30-60 minutes. May be sanded, drilled, sawed and painted after set. Nonconductive with -20 to 300° Fahrenheit (-29 to 150° Celsius) temperature range when cured. No sag, no drip. Resistant to hydrocarbons, ketones, alcohols, esters, aqueous salt solutions, halocarbons, and dilute acids and bases. 900 psi tensile shear strength. 75-85 hardness shore D after 1 week of curing. Packed in resealable, air-tight plastic cylinder.