Methyl tetrahydrophthalic anhydride (MTHPA, MeTHPA) is a high performance product of anhydride epoxy curing agent. Our MTHPA products of WNY-1002 series has excellent performance when reacting with epoxy resins. Its characteristics include high purity, light color, low viscosity, low volatility, low toxicity, low heating loss, stable performance, long pot life, and freezing point. It can be long-term stored at low and room temperature. The specific characteristics are as follows