Fast Cure Epoxy Curing Agent DH-3239 Hardener DH-3239 accelerates the curing schedule of epoxy floor systems so facilities can resume operation faster. Coated floors reach walkable hardness overnight and full mechanical strength within days at 25℃. The fast hardness build does not sacrifice gloss or chemical resistance, keeping project timelines short without quality loss. Product Specifications Property Unit Value Model - DH-3239 Color - Gardner color; ≤2 Appearance -