Desmophen® 680 X is a hydroxyl-bearing polyester, and is ideally used as a co-reactant with Desmodur® N in the formulation of two-component polyurethane coatings with good gloss retention, lightfastness and chalking resistance. It can also be used in combination with Desmodur® L and HL in the formulation of fast-drying, two-component coatings.
Desmophen® 680 X is a hard co-reactant for Desmodur® N grades. The drying of such combinations is comparable with that of the acrylic resin/Desmodur® N systems developed specially for vehicle repair. They are therefore particularly suitable for use in the formulation of air-drying automotive and industrial coatings. Crosslinking with Desmodur® L and HL results in very fast-drying coatings which can be used in, for example, paper finishing.
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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