Bayhydrol® A 2542 is an anionic polyacrylate dispersion that has a waterborne, low VOC two-component polyurethane coatings in combination with aliphatic polyisocyanates. This product has a non-volatile content (1g / 1h / 125°C / convection oven) of 48-51, a viscosity at 23°C, D=approx.40s-1 of 1,000 - 3,500, and a pH (1:4 in demineralised water) of 7-8.
On account of its outstanding mechanical and chemical resistance, the product is particularly suitable for the formulation of hard, high-gloss sealers for mineral substrates and reactive resins (EP, PUR). Furthermore, excellent accentuation of the grain of the substrate (e.g. colored coatings) is achieved.
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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