DuPont Corp. Asphalt anti-stripping agent: BHMT Amine is a mixed amine containing 25 to 75 wt% of bis (hexamethylene)triamine (BHMT) as the primary component. (Also as curing agent for epoxy resins or urethanes.) DuPont does not sample or market this product in Europe, Middle East or Africa. Cat: Suppliers of Raw Materials: Additives and Polymers for Modification of Bitumen