|CRC 5000 Gel Patch is a flexible, non-abrasive filled 100% solids epoxy system. It is excellent to patch horizontal and vertical cracks and holes. CRC 5000 GP is used as an underlay for tile, ceramics, and marble as well as wood, concrete, steel and many other materials. It functions as a permanent waterproofing system. CRC 5000 GP is a material which exhibits low coefficient of thermal expansion and offers exceptional shock resistance. It is designed in such a way that the mix ratio is 2:1 by volume. CRC 5000 GP is a room temperature cure, has excellent moisture resistance, and is also dispensable by machine and pneumatic & manual dispensing guns.