Polyamide curing agent DH-115S for oilfield pipeline coating Description DH-115S is a polyamide curing agent formulated for oilfield and pipeline coating systems. It provides strong adhesion, long pot life, and dependable chemical and water resistance in demanding service. Recommended for oilfield pipelines, wellhead equipment, and industrial piping protection. Specifications DH-115S Unit Value Appearance / Amber liquid Color Gardener 9 max A.H.E. W g/eq 200 Amine value mgKOH