Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g., in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.
Product description
Mondur MRS 4 is a low to medium functionality polymeric diphenylmethane-diisocyanate (pMDI) with a moderately high 2,4’-MDI isomer content.
Applications
Mondur MRS 4 has utility in a broad range of polyurethane applications including binders, elastomers, semi-flexible and packaging foams, polymer concrete, membranes and joint materials. As with any product, use of Mondur MRS 4 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Appearance | Brown/grey liquid | |||
| Specific gravity | at 25°C | 1,24 | ||
| Flash point | PMCC | 233,8 | °C | |
| Equivalent weight | avg. | 129 | ||
| Density | at 25°C | 10,3 | lb/gal |
Storage
Mondur MRS 4 isocyanate must be stored in tightly closed containers and protected from contamination with moisture and foreign materials, which can adversely affect processing. It will react slowly with water to form polyureas and liberate carbon dioxide gas, which may cause sealed containers to expand and rupture. Recommended storage temperatures are 10° to 30°C (50° to 86°F). The shelf life is six months after receipt of product by customer, when stored in closed original containers and stored under the recommended conditions.
Health and Safety Information
Disclaimer
Contact
Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .
