hdi quick drying  ht-790b   about: wannate® ht-790b is a low viscosity, aliphatic polyisocyanate-based on hexamethylene diisocyanate (hdi) by chemical. it is easy to apply and has a stable molecular structure. it shows excellent weathering- and chemical resistance. it imparts excellent gloss, good dilution stability, and excellent mechanical performance and color retention ability. wannate® ht-790b is...