Epoxy hardener HW -3541 is a low viscosity, solvent and BA free phenalkamine epoxy curing agent. It has excellent rapid cure properties, even at low temperature cure, offers very good chemical resistance, and provides excellent adhesion on wet or otherwise unprepared surfaces and green concrete. 2003 offers excellent water resistance, thus, provide outstanding water proofing layer. This product’s fast cure and good hardness make it ideal for applications requiring fast return