hdi trimer asahikasei  tka-100 about: product class: isocyanate duranate tka-100 by asahi kasei is a hexamethylene diisocyanate (hdi) trimer. acts as a curing agent for urethanes. exhibits excellent color retention,weatherability and outstanding performance. possible applications could be coatings for automotive, architectural, industrial, consumer electronic and information technology. other applications of duranate tka-100 may include gravure, offset and screen...