Epoxy is a powerful adhesive used in many industrial and automotive applications. It comprises two main ingredients: an epoxide resin and a polyamine hardener. Once combined, the two create a powerful bond that won’t weaken by extreme temperatures or impact. Epoxy can simultaneously fill gaps and join materials for a robust and permanent connection. Due to its wide array of uses and little-to-no limitation on the type of material it can adhere to, epoxy has become a prolific tool for accomplishing countless tasks, from designing circuit boards to repairing bullet-damaged gun parts.