| Desmophen® 1700 | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 1700 is a branched, solvent-free saturated polyester resin normally only used as a plasticizing resin with other polyesters. It is soluble in aromatic hydrocarbons and has no solubility in aliphatic hydrocarbons. This product has an equivalent ...view more Desmophen® 1700 is a branched, solvent-free saturated polyester resin normally only used as a plasticizing resin with other polyesters. It is soluble in aromatic hydrocarbons and has no solubility in aliphatic hydrocarbons. This product has an equivalent weight of approx. 1310, a viscosity at 23°C of 17,500 ± 2,500 mPa·s, and a pour point of approx. -5°C. Combinations of Desmophen® 1700 with various polyisocyanates yield highly flexible coatings. For this reason, the product is normally used as the flexibilizing component in combination with other Desmophen® grades. In certain combinations, e.g. with Desmophen® 800, the addition of Desmophen® 1700 increases the toughness and resistance to wear and abrasion of the paint films. Such combinations can be used to coat furniture, floors and parquet. view less | |
| Desmophen® 650 MPA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 650 MPA is a branched, hydroxyl-bearing polyester is used mainly as a co-reactant with Desmodur® N 75. This combination results in coatings with excellent lightfastness, gloss retention, weather stability, and two-pack polyurethane coatings. Th...view more Desmophen® 650 MPA is a branched, hydroxyl-bearing polyester is used mainly as a co-reactant with Desmodur® N 75. This combination results in coatings with excellent lightfastness, gloss retention, weather stability, and two-pack polyurethane coatings. They also have very good resistance to chemicals and high abrasion resistance. This product has a non-volatile content (1g resin/1ml TCP*/1h at 125°C, convection oven) of 64±2%, a flash point of approx. 46°C, and a hazen color value of ≤ 100. view less | |
| Desmophen® 651 MPA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 651 MPA is a branched hydroxyl-bearing polyester s mainly used as a co-reactant with Desmodur® N 75. This combination yields coatings with excellent lightfastness, gloss retention, weather stability, and two-pack coatings. They also have very g...view more Desmophen® 651 MPA is a branched hydroxyl-bearing polyester s mainly used as a co-reactant with Desmodur® N 75. This combination yields coatings with excellent lightfastness, gloss retention, weather stability, and two-pack coatings. They also have very good resistance to chemicals and abrasion. This product has a non-volatile content (1g resin/1ml TCP*/1h at 125°C, convection oven) of 65±1%, a flash point of approx. 40°C, and a hazen color value of ≤ 100. view less | |
| Desmophen® 651 MPA/X | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 651 MPA/X is a branched hydroxyl-bearing polyester that is used as a co-reactant, usually for Desmodur N 75, in the formulation of lightfast, gloss retention, weather-stable and two-pack coatings. They also have very good resistance to chemical...view more Desmophen® 651 MPA/X is a branched hydroxyl-bearing polyester that is used as a co-reactant, usually for Desmodur N 75, in the formulation of lightfast, gloss retention, weather-stable and two-pack coatings. They also have very good resistance to chemicals and abrasion. This product has a non-volatile content (1g resin/1ml TCP*/1h at 125°C, convection oven) of 67±1%, a flash point of approx. 32°C, and an acid value of ≤ 3mg KOH/g. view less | |
| Desmophen® 670 | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 670 is a solvent-free, slightly branched, hydroxyl-bearing polyester that is ideally used as a co-reactant, usually with Desmodur N 75 and N 3390, in the formulation of flexible, weather-stable coatings. They are mainly used to coat plastics an...view more Desmophen® 670 is a solvent-free, slightly branched, hydroxyl-bearing polyester that is ideally used as a co-reactant, usually with Desmodur N 75 and N 3390, in the formulation of flexible, weather-stable coatings. They are mainly used to coat plastics and are force-dried, e.g. at 80°C. Desmophen® 670 can be used as a flexibilizer in other DD coating systems. This product has a viscosity at 23°C (80% in butyl acetate) of 2,200 ± 400 mPa·s, a pour point of approx. + 8°C, and an acid value of 2 ± 1mg KOH/g. view less | |
| Desmophen® 670 BA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 670 BA is a slightly branched hydroxyl-bearing polyester that is used as a co-reactant primarily with Desmodur® N 75 and N 3390, which yields films with very good weather stability and excellent low temperature flexibility. Such coatings are ma...view more Desmophen® 670 BA is a slightly branched hydroxyl-bearing polyester that is used as a co-reactant primarily with Desmodur® N 75 and N 3390, which yields films with very good weather stability and excellent low temperature flexibility. Such coatings are mainly used to coat plastics and are force-dried, e.g. at 80°C. Desmophen® 670 BA can also be added to other two-component polyurethane systems to improve their flexibility. This product has a flash point of approx. 32°C, an acid value of 1.8±1mg KOH/g, and a non-volatile content (1g resin/1h 125°C, convection oven) of 80±1%. view less | |
| Desmophen® 680 BA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 680 BA is a branched hydroxyl-bearing polyester that is ideally used as a co-reactant for Desmodur® N in the formulation of two-component polyurethane coatings with good gloss retention, lightfastness and chalking resistance. It can also be use...view more Desmophen® 680 BA is a branched hydroxyl-bearing polyester that is ideally used as a co-reactant for Desmodur® N in the formulation of two-component polyurethane coatings with good gloss retention, lightfastness and chalking resistance. It can also be used in combination with Desmodur® L and HL in the formulation of fast-drying two-component coatings. This product as a viscosity at 23°C of 3,000 ± 500 mPa·s, a non-volatile content (2g resin/2ml toluene/1h 125°C, convection oven) of 70±1%, and a flash point of approx. 32°C. Desmophen® 680 BA is a hard co-reactant for use with Desmodur® N. The drying properties of this combination are comparable with those of the acrylic Desmophen® resin/Desmodur® N systems developed specially for automotive repair paints. It is therefore particularly suitable for the formulation of air-drying automotive and industrial coatings. Coatings crosslinked with Desmodur® L and HL are particularly fast-drying, making them suitable for applications such as paper finishing. view less | |
| Desmophen® 680 X | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 680 X is a hydroxyl-bearing polyester, and is ideally used as a co-reactant with Desmodur® N in the formulation of two-component polyurethane coatings with good gloss retention, lightfastness and chalking resistance. It can also be used in comb...view more Desmophen® 680 X is a hydroxyl-bearing polyester, and is ideally used as a co-reactant with Desmodur® N in the formulation of two-component polyurethane coatings with good gloss retention, lightfastness and chalking resistance. It can also be used in combination with Desmodur® L and HL in the formulation of fast-drying, two-component coatings. Desmophen® 680 X is a hard co-reactant for Desmodur® N grades. The drying of such combinations is comparable with that of the acrylic resin/Desmodur® N systems developed specially for vehicle repair. They are therefore particularly suitable for use in the formulation of air-drying automotive and industrial coatings. Crosslinking with Desmodur® L and HL results in very fast-drying coatings which can be used in, for example, paper finishing. view less | |
| Desmophen® 690 MPA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 690 MPA is a branched hydroxyl-bearing polyester is mainly used as a co-reactant with Desmodur® N to formulate relatively fast-drying, colourfast, weather-stable coatings and two-component polyurethane coatings. This product has an acid value o...view more Desmophen® 690 MPA is a branched hydroxyl-bearing polyester is mainly used as a co-reactant with Desmodur® N to formulate relatively fast-drying, colourfast, weather-stable coatings and two-component polyurethane coatings. This product has an acid value of ≤ 6%, a hydroxyl content of 1.4 ± 0.2%, and a non-volatile content (1g resin/1h 125°C, convection oven) 70 ± 2%. view less | |
| Desmophen® 800 MPA | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 800 MPA is a highly branched, hydroxyl-bearing polyester used in the formulation of two-pack polyurethane coatings. This product has an acid value of < 4mg KOH/g, an equivalent weight of approx. 225, and a pour point of approx. -11°C. When c...view more Desmophen® 800 MPA is a highly branched, hydroxyl-bearing polyester used in the formulation of two-pack polyurethane coatings. This product has an acid value of < 4mg KOH/g, an equivalent weight of approx. 225, and a pour point of approx. -11°C. When combined with Desmodur® L, Desmophen® 800 MPA yields hard and chemically resistant films. The coatings are also characterised by their high impact strength, toughness and resistance to abrasion. A combination with Desmophen® 1100 yields floor coatings with high resistance to abrasion. view less | |
| Desmophen® 850 | Covestro (formerly Bayer MaterialScience) 科思创 | Desmophen® 850 is a linear polyester bearing hydroxyl group used in combination with other Desmophen® grades in the formulation of two-component PU coatings. Desmophen® 850 can be combined with other suitable Desmophen® grades to formulate laminating coat...view more Desmophen® 850 is a linear polyester bearing hydroxyl group used in combination with other Desmophen® grades in the formulation of two-component PU coatings. Desmophen® 850 can be combined with other suitable Desmophen® grades to formulate laminating coatings. This product has a pour point of approx. +10°C, a hazen color value (70% in 1-methoxypropylacetate-2) of ≤ 200, and a viscosity at 75°C of 410 ± 50 mPa·s. view less |
