Good leveling Epoxy Hardener Resin HWD-140A with long operating time in anti-corrosion medium,primer coating Polyamide Epoxy Resin HWD-140A is a reactive polyamide with medium and low viscosity. It can be used in conjunction with different epoxy resins. The cured product has good leveling, toughness, chemical resistance, and has excellent adhesion and elasticity. It is widely used It is used in the fields of sealant, electronic component packaging and various two-component