hdi quick drying asahikasei tfd-90sb   about: product class: isocyanate duranate tka-90sb by asahi kasei is a hexamethylene diisocyanate (hdi) trimer compatible with urethanes. acts as a curing agent. exhibits excellent weatherability, good chemical & abrasion resistance, good compatibility and drying properties. offers excellent color retention and outstanding performance. suitable for coatings for automotive, architectural, industrial, consumer electronic...