Epoxy Hardener HW-8501 is an amidoamine curing agent produced by a special process. It has a very fast curing speed. The cured product has high hardness, excellent adhesion, and water resistance. It is common used adhesive. 1. The physical and chemical properties Appearance Light Yellowish transparent liquid Viscosity(CPS/25℃) 300-800 Amine value (mgKOH/g) 370-430 Color(Gardener) ≤10 Solid content(%, 2g/3h/105°C) ≥98 A.H.E.W 65 PHR(with 100g epoxy resin EEW=190,) 35 Pot life