Desmodur® N 3386 BA/SN is an aliphatic polyisocyanate (HDI trimer) that is used as the hardener component for lightfast polyurethane coating systems. This product has a non-volatile content (2.2g / 120min / 100°C) of 86 ± 1%, a viscosity at 23°C of 320 ± 80 mPa·s, a viscosity at 25°C of approx. 290 mPa·s, and a density at 20°C of approx. 1.11g/ml.
Desmodur® N 3386 BA/SN is used primarily as the hardener component for lightfast two-pack polyurethane coatings with high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties. The preferred co-reactants are polyacrylate or polyester polyols, and the main applications for systems based on Desmodur® N 3386 BA/SN are air- and force-drying coatings for automotive OEM, automotive refinishing, transportation, industrial finishing and plastics.
Covestro (formerly Bayer MaterialScience) provides raw materials, such as waterborne adhesives, major high solids coatings, advanced powder coatings, and specialty sealant chemistries. Bayer produces polycarbonates and polycarbonate blends, polyurethanes, and TPU resins, particularly for design and processing parts with TPU resins applications; helping products in a wide variety of applications look better and last longer.
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