Polyamide curing agent DH-115 Description DH-115 is a concrete primer grade polyamide hardener formulated for penetrating and sealing concrete substrates in floor coating systems. It provides strong adhesion even on slightly damp concrete, creating a solid foundation for subsequent topcoat layers. Specifications Property Value Appearance Clear amber liquid Color (Gardner) 7 max AHEW (g/eq) 195 Amine Value (mgKOH/g) 195-235 Viscosity @40℃ (cps) 9,000-26,000 Solid Content (%)