Bayhydrol® A 2139/2 

Bayhydrol® A 2139/2 is an aqueous, fatty acid-modified, hydroxyfunctional polyester/polyacrylate copolymer that can be used in the formulation of two-component polyurethane top coats and primers for plastics. This product has a non-volatile content (1g / 1h / 125°C/convection oven) of 45-49, a viscosity at 23°C, (D = approx. 40 s-1) of 1,000 - 2,500, an acid value of 11.5 - 14.5, and a pH (1:4 in demineralised water) value of 6.8 - 7.9.

Bayhydrol® A 2139/2 can be combined with Bayhydur® 3100 to yield highgloss solvent-resistant top coats. It is used as a one-coat top coat on many substrates, it has good adhesion and high body. When combined, it can also be used to formulate two-component primers for many thermoplastics and thermosets.

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拜耳材料生產膠黏劑原料,用於制備交通、家具、鞋、包裝和建築市場用觸敏和熱活化膠黏劑,反應性和熱熔膠粘劑。拜耳提供基於聚氨酯和氯丁橡膠的全面產品系列,包括能夠提供耐紫外線和耐候性的特種原材料。

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Covestro (formerly Bayer MaterialScience) 科思创

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