https://www.wsxchem.com/formulation-of-epoxy-resin-hardener.html Epoxy resin hardener reacts with epoxy resin to form a network solid polymer. The composite is wrapped in the network, which can transform the linear resin into a tough bulk solid. 1. TYPES OF CURING AGENTS BASIC Basic curing agent WTF: including aliphatic diamines and polyamines, aromatic polyamines, other nitrogen compounds and modified fatty amines.All Rights Reserved