HDI Low Viscosity Covesro N3600   Characterization : Aliphatic polyisocyanate (low-viscosity HDI trimer). Use as the hardener component for flexible, lightfast polyurethane coating systems. Specification: Property Value Unit of measurement Method NCO content 23.0 ± 0.5 % % M105-ISO 11909 Viscosity at 23 °C 1,200 ± 300 mPa·s M014-ISO 3219/A.3 Color value (Hazen) ≤ 40 M017-EN 1557...