LoctiteÂ® Epoxy Weldâ„¢ Bonding Compound is a two-part system consiting of an epoxy resin and a hardener. When mixed in equal volumes, the resin and hardener react to quickly produce a tough, rigid, high strength bond. LoctiteÂ® Epoxy Weldâ„¢ can be used as a convenient alternative to welding. It can be used as an adhesive for repairing, filling and rebuilding all metal and common surfaces. It cures to a metallic gray finish and can be easily sanded, drilled, machined or painted when fully cured. LoctiteÂ® Epoxy Weldâ„¢ does not shrink and is resistant to most shop fluids such as water, diesal fuel, gasoline, antifreeze, hydraulic fluid, motor oil and transmission fluids.