Epoxy Resin and Hardener: Detailed OverviewEpoxy resins are a class of reactive prepolymers and polymers containing epoxide groups. These resins are widely used in adhesives, coatings, laminates, composites, and casting materials when cured with a hardener (also called a curing agent). 1. Epoxy ResinChemical CompositionTypically based on bisphenol-A (BPA) and epichlorohydrin. Formula (general): C21H24O4 (for common resins ... Continue