HDI Low Viscosity WanHua HT-600 ABOUT: WANNATE® HT-600 is a low viscosity solvent-free polyfunctional aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). HDI trimer can be used as the hardener component for lightfast two-component polyurethane coatings with high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties. The main applications for coatings...