hdi water dispersion asahikasei  wt30-100   about: duranate™ wt30-100 by asahi kasei is a water dispersible hexamethylene diisocyanate (hdi) with urethane resin compatibility. acts as a curing agent. exhibits excellent color retention and outstanding performance. offers high weatherability, excellent good chemical & abrasion resistance, good adhesion and drying properties. applications include coatings for automotive, architectural, industrial,...