Bayhydrol® A 2646 is an anionic polyacrylate dispersion used in waterborne, low VOC two-component polyurethane coatings in combination with aliphatic polyisocyanates. This product has a hydroxyl content, (calculated on solid) of approx. 3.8, a hydroxyl content, (supply form) of approx. 2.7, and a density at 20°C of approx. 1.06.
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, good accentuation of the grain of the substrate (e.g. colored coatings) is achieved. The binder can also be used for the formulation of high-grade low VOC coatings for use on substrates such as wood, metal, plastic, etc.
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