VORANATE™ M 647 Polymeric MDI
A dark-brown, intermediate viscosity polymethylene polyphenylisocyanate of high reactivity, a total isocyanate content of about 30.9% and an average functionality of 2.85. It was specifically designed for use in the production of both PUR and PIR rigid (continuous and discontinuous) block foams. The slightly higher functionality and intermediate viscosity of this as compared with VORANATE™ M 580 also makes it ideal for certain continuous and discontinuous laminating processes. The increased functionality promotes improved foam cure, excellent strength properties and better dimensional stabilities.
These values are typical properties and are not intended for use in preparing specifications.
- % NCO 30.9 %
- Average Dynamic Viscosity (cP) 600
- Nominal Functionality 2.85
No Safety Data Sheets are available online for this material Please Contact Dow for additional information.
No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.