Hand-moldable epoxy putty in a convenient "one stick" format hardens above or below water to an "off-white" color. Aggressive adhesiveness and fast 5-minute cure time make Leakmaster Quick Set the logical choice for a multitude of non-cosmetic repairs. Repair cracks in skimmers, main drains and fittings, fill cracks in plaster, gunite, fiberglass, or acrylic. Pack around light cable to seal leaking light conduit (permanent). Create a cast around pipe to hold Butyl Tape in place for plumbing leaks