| Bayhydrol® U 241 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® U 241 is a polyester polyurethane dispersion used in the formulation of stoving industrial coatings, stoving automotive primer surfaces and two-pack polyurethane primers and top coats for plastics. This product has an OH content, solvent-free o...view more Bayhydrol® U 241 is a polyester polyurethane dispersion used in the formulation of stoving industrial coatings, stoving automotive primer surfaces and two-pack polyurethane primers and top coats for plastics. This product has an OH content, solvent-free of approx. 2.5, a minimum film-forming temperature MFT of approx. 0, and a mean particle size of approx. 50. Bayhydrol® U 241 is a polyester-polyurethane dispersion neutralized with dimethyl ethanol amine which is resistant to hydrolysis. The product can be diluted with water for application and shows no dilution anomalies. Bayhydrol® U 241 can be combined with partially methylated melamine resins to formulate water-dilutable stoving coatings and primers which cure at approx. 120°C. view less | |
| Bayhydrol® U 355 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® U 355 is an aliphatic, hydroxyfunctional polyester polyurethane dispersion that is used as binders for the formulation of water-thinnable soft-feel coatings. This product has a viscosity at 23°C, (D = approx. 240 s-1) of 250-650, a non-volatile...view more Bayhydrol® U 355 is an aliphatic, hydroxyfunctional polyester polyurethane dispersion that is used as binders for the formulation of water-thinnable soft-feel coatings. This product has a viscosity at 23°C, (D = approx. 240 s-1) of 250-650, a non-volatile content (1g / 1h / 125°C) of 53-57, and a pH (10% in water) value of 7.0-7.5. Bayhydrol® U 355 can be combined with flexible polyurethane dispersions, e.g. Bayhydrol® UH 240 and UH 340/1, to formulate soft-feel and suede-effect coatings. This product's suitable polyisocyanate components are Bayhydur® 3100, Bayhydur® VP LS 2306 and Bayhydur® VP LS 2319. view less | |
| Bayhydrol® U XP 2755 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® U XP 2755 is an solvent-free, aqueous hydroxyfunctional polyester-polyurethane dispersion. When combined with aliphatic polyisocyanates, it is well suited for the formulation of glossy and matte clear 2K polyurethane coatings, as well as pigmen...view more Bayhydrol® U XP 2755 is an solvent-free, aqueous hydroxyfunctional polyester-polyurethane dispersion. When combined with aliphatic polyisocyanates, it is well suited for the formulation of glossy and matte clear 2K polyurethane coatings, as well as pigmented coatings. This product provides coatings with very good film transparency, high wood warmth, fast drying, high hardness, and long pot life. view less | |
| Bayhydrol® U XP 2766 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® U XP 2766 is a hydroxyfunctional polyester-polyurethane dispersion which can be thinned with water to application viscosity. It is a binder for the formulation of water-reducible 2K-PUR coatings, and is an anionic, hydroxyfunctional polyester-p...view more Bayhydrol® U XP 2766 is a hydroxyfunctional polyester-polyurethane dispersion which can be thinned with water to application viscosity. It is a binder for the formulation of water-reducible 2K-PUR coatings, and is an anionic, hydroxyfunctional polyester-polyurethan dispersion, that is solvent-free. This product has an acid number of approx. 11, a density at 20°C of approx. 1.06, and an OH content (solid resin) of approx. 4.0. Bayhydrol® U XP 2766 is a hydroxyfunctional polyester-polyurethan dispersion which can be thinned with water to application viscosity. In combination with hydrophobic polyisocyanates (e.g. Desmodur® N 3600, N 3900 , XP 2730) and/or with hydrophilic polyisocyanates (e.g. Bayhydur 3100, 304, 305, XP 2487/1, XP 2655) high performance, hard-elastic two-component polurethane-hydrocoatings can be formulated. view less |
