DEH 488 Epoxy Curing Agent is a low viscosity, modified cycloaliphatic polymine based, curing agent for epoxy resins. DEH 488 is not manufactured with nonlphenol. It has low viscosity and good acid and chemical resistance.DEH 488 Epoxy Curing Agent is a low viscosity, modified cycloaliphatic polymine based, curing agent for epoxy resins. DEH 488 is not manufactured with nonlphenol. It has low viscosity and good acid and chemical resistance. Epoxy resin systems cured with DEH 488 at temperatures about 10 °C show tack-free and colorfast surfaces. DEH 488 has an outstanding resistance to early water spotting.