Bayhydrol® A 2058 is an aqueous hydroxyfunctional polyacrylic dispersion used in the formulation of flexible two-component polyurethane top coats and primers for plastics. This product has a non-volatile content (1g / 1h / 125°C / convection oven) of 41 - 45, a pH (1:3 in demineralised water) of 7.5 - 9.5, and a viscosity at 23°C, (approx.D=82s-1) of 200 - 2,000.
Bayhydrol® A 2058 combined with Bayhydur 3100 yields high-gloss flexible top coats which are resistant to solvents. The formulation can be applied as a one-coat system on many substrates and has good adhesion and body. Two-pack primers can be formulated by combining Bayhydrol® A 2058 with Bayhydur® 3100. These are highly suitable for use on thermoplastics and thermosets and are characterised by excellent adhesion, sandability and water resistance.
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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