Forms A Solid Piece Of Rubber In 30 Minutes;Works On Dirty, Wet, Oily, Surfaces. No Special Surface Preparation Required. Stops Leaks In Copper, Pvc;Galvanized, Abs, Brass, Cpvc, Pvc, Copper Pipe;Works Under Water;Self-Bonding;No Messy Epoxy;Ul Listed;Suitable for voltage to 600v;Works at temperatures of -27F to 212F;Holds up to 100 PSI;Convenient size 1" X 16'