Product. Description Epoxy Hardener 2216 is a modified aliphatic solvent-free epoxy curing agent. It has an extra low viscosity, high activity, light color, and is used for compounding with liquid epoxy resins at room temperature. It also has advantages of excellent UV resistance,high hardness, and high gloss. The physical and chemical properties Appearance Transparent liquid Viscosity(BH model CPS/25℃) 160-240 Amine value (mgKOH/g) 290±20 Color(G/H mothod) <1 Solid content