ACCELERATOR 399 | Huntsman Performance Products | Accelerator 399 is a superior epoxy curing promoter designed for use with amine hardeners. The product was developed specifically for use with JEFFAMINE® curing agents, but it is compatible with most amines and may be used in most amine-cured epoxy system...view more Accelerator 399 is a superior epoxy curing promoter designed for use with amine hardeners. The product was developed specifically for use with JEFFAMINE® curing agents, but it is compatible with most amines and may be used in most amine-cured epoxy systems. view less |