Repair cracks and leaks in large-diameter pipes and fittings with Weld-On 10812 810 White Two-Part Reactive Adhesive 1 pt. This thick and syrupy high-strength adhesive features a fast cure time and excellent gap-filling properties, making it an ideal choice for repairing cracks and leaky pipe valves and fittings, as well as for fabricating fittings and joining saddles to pipes. Weld-On 810 is specially formulated to bond large-diameter PVC and CPVC pipes and fittings and can also be used to bond ABS, styrene, acrylic, fiberglass-reinforced polyester, concrete, clay, and other materials to themselves or to dissimilar materials. This high-strength adhesive is designed to withstand very high pressure and a wide range of temperatures (-30° to 140°F). It provides excellent adhesion in peel, tensile, and sheer applications. For joints subjected to chemical exposure, prior evaluation must be made of the specific chemical concentration, temperature, and pressure involved and the compatibility with Weld-On 810. This reactive adhesive is not recommended for use on neoprene, Delrin, PTFE, silicone, polypropylene, polyethylene, and other polyolefins, or joints with an interference fit.