PC-Marine, 2 OZ Epoxy Repair Putty, Kneadable Epoxy Putty For Use In Wet & Underwater Applications. Changes From Green To White Once Mixed & Has A Working Time Of 15-20 Minutes, A Cure Time Of Approximatley 60 Minutes. Use Inside Or Out, In Fresh Or Salt Water. Repair Boats, Water Tanks Fish Boxes, Spas, Tubs. Gutters Etc. Can Be Drilled, Filled, Sawed, & Painted.