Epoxy plastics belong to a group of substances called polymers. They are manufactured from two components: a base component consisting of epoxy resin, and a hardener component consisting of different types of amines.
In addition there are also various additives in the base component and hardener, such as reactive thinners, pigments, fillers and other additives.
These additives modify the epoxy plastic to suit the application in question. When the base and hardener are mixed there is a chemical reaction which forms a transverse structure: epoxy plastic.