Polymeric Isocyanate Desmodur 44V20
General Properties and Applications
Desmodur44V20 is a liquid, dark brown polymeric isocyanate based on diphenylmethane-4.4′-diisocyanate (MDI) with isomers and homologues of higher functionality. It is used in conjunction with polyols to produce polyurethane.
Specification
| Property | Value | Unit of measurement |
Method |
| NCO content | 30.5-32.5 | % by wt. | MDI-01-01 |
| Viscosity 25 °C*) | 160-240 | mP·s | MDI-01-02 |
| Acidity | max.200 | mg/kg | MDI-01-03 |
| *) Lengthy storage can lead to an increase in the viscosity of Desmodur® 44V20 L, although in our experience this has no adverse effect on the processing properties of the product. | |||
Other Data
| Property | Value | Unit of measurement |
Method |
| Density 20 °C | approx. 1.23 | g/cm* | DIN 51757 |
| Phenylisocyanate content | max.50 | ppm | MDI-01-09 |
| Coefficient of thermal expansion | 6.59.10-4 | K-1 | |
| Specific heat (cp) | approx. 1.51 | kJ/kgK |
Storage
Recommended storage temperature: + 10 to + 30 °C (in exceptional casesup to 50°C)
Storage stability (ex works): 6 months if stored in moisture-tight drums
If you're ready to take the next step or Request Free Samples, Leave your message below and we’ll reply soon. 20+ years of chemical manufacturing & export experience, a partner you can trust.
在线联系供应商
Other supplier products
 |
Weather-resistant powder coating for coils | Introduction Conventional liquid coil coatings were successfully developed and applied in the late 1950s and early 1960s. To date, almost all pre-... |
|
|
Polyester/TGIC Powder Coatings | Feature: -Good bond ability and good mechanical properties -Good overbaking resistance -Excellent weatherability -Good flowing and glossy Fiel... |
 |
Polyester resin based thermo-setting powder coatings MT-300 AM | Product Description MT-300 AM is a series of polyester resin based thermo-setting powder coatings formulated using TGIC. The pigments used in the ... |
 |
Fluoropolymer MT-2613 | MT-2613 polymer processing aid is a free-flowing white powder containing 97% active ingredients. This product is used to improve the processing per... |
 |
Polyurethane waterproof coating A STD-939 | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product Description The polyurethane prepolymer has a high resin content with excel... |
Same products
 |
5.4,4'-Oxydiphenol CAS 1965-09-9 | 卖方: Yufeng International Group Co., Ltd | Product Name: 4,4'-Oxydiphenol Synonyms: 4,4'-Dihydroxydiphenyl ether 4,4'-Oxydiphenol Bis(4-... |
 |
1,1,2,2-Tetrachloroethane CAS 79-34-5 | 卖方: Yufeng International Group Co., Ltd | Product Name: 1, 1, 2, 2-Tetrachloroethane Synonyms: 79-34-5 s-Tetrachloroethane Acetylene te... |
 |
3.Chlorotrifluoroethylene (CTFE) CAS 79-38-9 | 卖方: Yufeng International Group Co., Ltd | Synonyms: CHLOROTRIFLUOROETHYLENE 79-38-9 CTFE Chlorotrifluoroethene 1-Chloro-1,2,... |
 |
2.1,1,2-Trichloroethane CAS 79-00-5 | 卖方: Yufeng International Group Co., Ltd | Product Name: 1, 1，2-Trichloroethane CAS: 79-00-5 Synonyms:79-00-5, Vinyltrichloride, beta-... |
 |
1.1,1,2,2-Tetrachloroethane CAS 79-34-5 | 卖方: Yufeng International Group Co., Ltd | Product Description Product Name: 1, 1, 2, 2-Tetrachloroethane Synonyms: 79-34-5 s-Te... |
