Transparent liquid modified cycloaliphatic amine epoxy resin curing agent 8211 equal to KH816 8211 is an extremely low viscosity modified cycloaliphatic amine epoxy hardener used with liquid epoxy resins at room temperature. It has the advantages of good flexibility, good yellowing resistance,good moisture resistance,whitening resistance and water stains resistance, good color stability, high hardness, high gloss surface effect, excellent dilution effect on epoxy resin. 1.