Polyamide curing agent DH-115S for bridge anti-corrosion Description DH-115S is a polyamide curing agent developed for bridge anti-corrosion coating projects. It delivers strong steel adhesion, long pot life, and dependable weather and water resistance. Recommended for bridge decks, girders, and long-span steel structures in open environments. Specifications DH-115S Unit Value Appearance / Amber liquid Color Gardener 9 max A.H.E. W g/eq 200 Amine value mgKOH/g 180-220