Desmodur® VP.PU 26BD10

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Product description

Applications

DESMODUR VP.PU 26BD10 is a solvent free, yellow to brownish, modified liquid blend of diphenylmethane-4,4'-diisocyanate with isomers and homologues of higher functionality.It can be used in conjunction with polyols for the production of polyurethane products.

Sampling

Moisture access should be prevented when taking product samples.

Specification

Property Test Condition Value Unit Standard
Density at 20 °C approx. 1,21 g/cm3 DIN 51757
NCO-content 24,0 - 25,0 % by wt. MDI-01-01
Viscosity at 25 °C * 300 - 420 mPa*s MDI-01-02

Storage

Storage in original sealed Covestro containers.Recommended storage temperature: 10 – 30 °CProtect from moisture, heat and foreign material.Covestro represents that, for a period of 6 months following the day of shipment as stated in the respective delivery documents, the product will meet the values set forth in section "specification" above provided that the product is stored in full compliance with the storage conditions and is otherwise handled appropriately.The lapse of this period does not necessarily mean that the product no longer meets specifications. However, prior to using said product, Covestro recommends to test such a product if it still meets the specifications. Covestro does not make any representation regarding the product after the period and Covestro shall not be responsible or liable in any way for the product failing to meet specifications after the period.

Processing

DESMODUR VP.PU 26BD10 may undergo partial crystallization at temperatures below 10 °C. The product can, however, be brought back into the liquid state by heating the entire contents of the drum for a short time to a maximum of 70 °C, although this may lead to an increase in the solids content.Drums including empty ones should always be kept tightly sealed. The product should never be allowed to come into contact with water, which reacts with DESMODUR VP.PU 26BD10 to form polyureas and carbon dioxide. Contact with water in any form (damp drums, solvents containing water, moist air) must be prevented not only during storage, but also when removing material from drums and during processing. Failure to do so may lead to a dangerous build up of pressure in tanks and drums due to the generation of carbon dioxide. In addition, polyureas forming in DESMODUR VP.PU 26BD10 can cause solids to separate out, leading to blockages in the filters, pumps and pipelines of the processing equipment and resulting in production problems.

Health and Safety Information

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.

The Product Safety First Program | Covestro

Disclaimer

Contact

Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .

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