| Bayhydrol® A 2770 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 2770 is an aqueous hydroxyfunctional polyacrylic dispersion. It can be used in combination with aliphatic polyisocyanates for waterborne 2K-polyurethane coatings. | |
| Bayhydrol® HD 2017 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® HD 2017 is a hydroxyl-functional acrylic resin dispersed in water with approximately 1% co-solvent. It can be used as a coreactant for Bayhydur® water-dispersible polyisocyanates in the formulation of < 50g/l VOC coatings. | |
| Bayhydrol® A 145 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 145 is a water-reducible, hydrofunctional polyacrylic dispersion that is used in the formulation of aqueous two-pack clear topcoats for vehicle repair applications, heavy transport finishing and industrial coating. It can be used in combinati...view more Bayhydrol® A 145 is a water-reducible, hydrofunctional polyacrylic dispersion that is used in the formulation of aqueous two-pack clear topcoats for vehicle repair applications, heavy transport finishing and industrial coating. It can be used in combination with amino resins or blocked polyisocyanates for waterborne, one-component, industrial baking coatings. This product has an acid value of 10 ± 3, a viscosity at 23°C, (D = approx. 40 s-1) of 950 ± 550, and a non-volatile content (1g / 1h / 125°C/ convection oven) of 45 ± 2. Bayhydrol® A 145 has good pigment wetting properties and high shear stability. Bead mills have proved suitable as grinding equipment. Only pigments and extenders with a minimal water-soluble content should be used. Bayhydrol® A 145 combined with aliphatic polyisocyanates yields high-gloss topcoats which can be dried at room temperature or force-dried, e.g. at 80°C. The cured paint films are hard and flexible with good single-coat adhesion and good resistance to solvents and water. view less | |
| Bayhydrol® HD 2016 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® HD 2016 is a co-solvent free hydroxyl functional acrylic resin dispersed in water. It is used as a coreactant for Bayhydur water-dispersible polyisocyanates in the formulation of < 50g/l VOC coatings. This product can also be combined with othe...view more Bayhydrol® HD 2016 is a co-solvent free hydroxyl functional acrylic resin dispersed in water. It is used as a coreactant for Bayhydur water-dispersible polyisocyanates in the formulation of < 50g/l VOC coatings. This product can also be combined with other water-reducible binders. view less | |
| Bayhydrol® A 2651 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 2651 is an aqueous hydroxyfunctional polyacrylic secondary dispersion well suited for the formulation of high gloss and matt clear 2K polyurethane coatings, as well as pigmented coatings. This product has a pH (1:3 in demineralised water) val...view more Bayhydrol® A 2651 is an aqueous hydroxyfunctional polyacrylic secondary dispersion well suited for the formulation of high gloss and matt clear 2K polyurethane coatings, as well as pigmented coatings. This product has a pH (1:3 in demineralised water) value of 8-9, an acid value of 8-11.2, and a hydroxyl content solvent-free, calculated to approx. 3. Bayhydrol® A 2651, combined with aliphatic polyisocyanates is well suited for the formulation of high gloss and matt clear 2K polyurethane coatings, as well as pigmented coatings. The product was developed in particular for the formulation of two-component wood coating systems. It is characterized by very good film transparency and high wood warmth. Crosslinking with Bayhydur® XP 2487/1 or XP 2655 yields coatings with very high chemical resistance. view less | |
| Bayhydrol® A 242 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 242 is a water-thinnable polyacrylic resin containing hydroxyl groups. It is used as a coreactant for Bayhydur® and Desmodur® polyisocyanates in the formulation of aqueous two-component polyurethane systems for various applications by brush, ...view more Bayhydrol® A 242 is a water-thinnable polyacrylic resin containing hydroxyl groups. It is used as a coreactant for Bayhydur® and Desmodur® polyisocyanates in the formulation of aqueous two-component polyurethane systems for various applications by brush, roller or spray. This product has a viscosity at 23°C, (D = approx. 165 s-1) of 200 ± 100, a non-volatile content (1g, 1h, 125°C) of 42 ± 2, and a pH (10% in demineralized water) value of 7.1 ± 0.7. Bayhydrol® A 242 is a water-thinnable hydroxyfunctional polyacrylic resin with emulsifying properties. It is neutralised with ammonia. Given the special composition of this product, both hydrophilic polyisocyanates, e.g. Bayhydur® 3100, and hydrophobic grades, such as Desmodur® N 3400 and others, are suitable co-reactants. The resultant water-thinnable two-component system cures to yield a polyurethane film with good general properties, and only a small-scale polyurea reaction takes place. view less | |
| Bayhydrol® A 2542 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 2542 is an anionic polyacrylate dispersion that has a waterborne, low VOC two-component polyurethane coatings in combination with aliphatic polyisocyanates. This product has a non-volatile content (1g / 1h / 125°C / convection oven) of 48-51,...view more Bayhydrol® A 2542 is an anionic polyacrylate dispersion that has a waterborne, low VOC two-component polyurethane coatings in combination with aliphatic polyisocyanates. This product has a non-volatile content (1g / 1h / 125°C / convection oven) of 48-51, a viscosity at 23°C, D=approx.40s-1 of 1,000 - 3,500, and a pH (1:4 in demineralised water) of 7-8. 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, excellent accentuation of the grain of the substrate (e.g. colored coatings) is achieved. view less | |
| Bayhydrol® A 2546 | Covestro (formerly Bayer MaterialScience) 科思创 | 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 (1...view more 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. view less | |
| Bayhydrol® A 2601 | Covestro (formerly Bayer MaterialScience) 科思创 | Bayhydrol® A 2601 is a water-reducible, hydroxyfunctional polyacrylate dispersion used in combination with aliphatic polyisocyanates for the formulation of waterborne two-component clearcoats and topcoats for general industrial and transportation coatings...view more Bayhydrol® A 2601 is a water-reducible, hydroxyfunctional polyacrylate dispersion used in combination with aliphatic polyisocyanates for the formulation of waterborne two-component clearcoats and topcoats for general industrial and transportation coatings. It can also be used in combination with suitable melamine resins for the formulation of one-component coatings. This product has a viscosity at 23°C, D=approx.40s-1 of 1,500 - 3,000, a non-volatile content (1g / 1ml toluene / 1h / 125°C) of 44-47, and a pH (1:4 in demineralised water) value of 7-8. This product can be used primarily in combination with Bayhydur® 304, XP 2487/1 and Desmodur® N 3900 for air- and oven-drying industrial coatings. The cured coating film is hard, tough but flexible and exhibits high gloss, good filling power, good weather and light stability, good resistance to solvents and gasoline and rapid drying. It is not recommended for clearcoat applications for wood. view less |
