ASAHIKASEI › DURANATE™ 22A 75PX DURANATE™ 22A 75PX $0.00 DURANATE™ 22A 75PX is a biuret type hexamethylene diisocyanate (HDI) with urethane resin compatibility. Acts as a curing agent. Add To Cart Added! DURANATE™ 22A 75PX is a biuret type hexamethylene diisocyanate (HDI) with urethane resin compatibility. Acts as a curing agent. You Might Also Like DURANATE™ TUL 100 DURANATE™ 22A 100 DURANATE™ TPA 100 DURANATE™ TKA 100 DURANATE™ E402 100