hdi low viscosity covesro n3400   about： product types hdi pic aliphatic polyisocyanate crosslinkers polyisocyanate hardeners polyisocyanurate isocyanate material: coatings, paints & inks:weather resistant, low viscous, solvent-free, easy mixing, waterborne general characterization: aliphatic polyisocyanate (hdi uretdione). as the hardener component for lightfast polyurethane coating systems. logistics and handling storage conditions: – storage in original sealed...