Desmophen® 670 BA is a slightly branched hydroxyl-bearing polyester that is used as a co-reactant primarily with Desmodur® N 75 and N 3390, which yields films with very good weather stability and excellent low temperature flexibility. Such coatings are mainly used to coat plastics and are force-dried, e.g. at 80°C. Desmophen® 670 BA can also be added to other two-component polyurethane systems to improve their flexibility. This product has a flash point of approx. 32°C, an acid value of 1.8±1mg KOH/g, and a non-volatile content (1g resin/1h 125°C, convection oven) of 80±1%.
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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