| Characterization: Desmodur N 3200A is an aliphatic polyisocyanate (low-viscosity HDI biuret). It is suitable for use as the hardener component for lightfast polyurethane coating systems. Properties / Applications: Desmodur N 3200A is used primarily 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. Preferred co-reactants are polyacrylate or polyester polyols. The main applications for systems based on Desmodur N 3200A are as air- and force-drying coatings for automotive and industrial finishing, for wood, furniture and plastics and for corrosion protection. On account of its low viscosity, Desmodur N 3200A is particularly suitable for the formulation of high-solids and solvent-free coating systems, e.g. for floors. As with any product, use of Desmodur N 3200A crosslinker in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Information provided by Covestro |
