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) manufactures adhesive raw materials for use in the production of contact and heat-activated adhesives, as well as reactive and hot-melt adhesives for the transportation, furniture, footwear, packaging, and construction markets. Bayer offers a comprehensive range based on polyurethane and polychloroprene, with specialty raw materials that offer UV light and weather resistance.
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