Bayhydrol® A 2546 is a binder used in the formulation of water-reducible, two-component polyurethane coatings and sealers for mineral substrates and reactive resins (EP,PUR), with anionic polyacrylate dispersion. This product has a non-volatile content (1g / 1h / 125°C / convection oven) of 38-42, a viscosity at 23°C, D=approx.45s-1 of max. 200, and a pH (1:3 in demineralised water) value of 7-9.
On account of its outstanding mechanical and chemical resistance, the product is particularly suitable for the formulation of sealers for mineral substrates and reactive resins (EP, PUR), in particular when good hot tire resistance is required. The product can also be combined with other water-reducible binders. On account of the many potential co-reactants, compatibility testing should always be carried out.
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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