Epoxy AB glue, also known as two-part epoxy adhesive, is a type of industrial strength adhesive that is composed of two parts - a resin and a hardener. When these two parts are mixed together, a chemical reaction takes place, causing the mixture to harden and form a strong and durable bond. This type of glue is commonly used for bonding metals, plastics, wood, ceramics, and other materials together in various industries such as automotive, construction, and electronics.