Submit

DESMODUR® VP.PU 0129

DESMODUR VP.PU 0129 is a mixture of 4,4'-, 2,4'- and 2,2'-diphenylmethanediisocyanate with a relatively high content of 2,4'-isomers which is liquid at 25 °C. It can be used in conjunction with polyols for the production of polyurethane products.

Contact an Expert
i
Market Switch
Selection will influence the results you get.
Copied to clipboard

About

Product Types

No data available

Material

No data available

General Characterization

DESMODUR VP.PU 0129 is a mixture of 4,4'-, 2,4'- and 2,2'-diphenylmethanediisocyanate with a relatively high content of 2,4'-isomers which is liquid at 25 °C.

It can be used in conjunction with polyols for the production of polyurethane products.

Storage Conditions

Storage in original sealed Covestro containers.
Recommended storage temperature: 20 – 40 °C

Protect 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.

General information: The product is sensitive to moisture and should therefore be stored in its sealed original containers. Prolonged storage at temperatures above 40 °C results in a deterioration in quality as the product becomes increasingly turbid owing to the formation of a sediment (dimers) that is not readily soluble. Storage at to low temperature results in crystallization, which starts at around 20 °C. The product tends to discolor (yellow to red) on contact with air and exposure to light during storage, but this does not appreciably affect quality. The storage of the crystallized product above 5 °C must be avoided as this promotes the formation of non-meltable dimers. As a result, the product can no longer be fully melted after around 3 weeks. To prevent crystallization, it must be ensured that the product does not cool to below
20 °C. Upon receipt, samples of the product should be tested for crystallization. If crystalli ... text to long! (max 2000 characters)

Sampling

Moisture access should be prevented when taking product samples.

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Viscosity at 25 °C MDI-01-02 mPa*s 12 ± 2
Purity MDI-01-01 % by wt. min. 99.5
Density at 25 °C DIN 51757 g/cm³ approx. 1.21
Total chlorine content MDI-01-10 mg/kg max. 100
Phenylisocyanate content MDI-01-09 mg/kg max. 10
NCO content (theoretical) % by wt. 33.6

Specifications

Property Name Test Method Unit Value
2,2'-MDI content MDI-01-06 % by wt. max. 0.8
4,4'-MDI content MDI-01-06 % by wt. min. 39.2
2,4'-MDI content MDI-01-06 % by wt. 55 ± 5
2,2'-MDI content MDI-01-06 % by wt. max. 0.8
4,4'-MDI content MDI-01-06 % by wt. min. 39.2
2,4'-MDI content MDI-01-06 % by wt. 55 ± 5
Hydrolysable chlorine MDI-01-04 ppm max. 50
Hydrolysable chlorine MDI-01-04 ppm max. 50

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

Related topics

Do you want to know more about DESMODUR® VP.PU 0129?
Get in touch with our experts!

How would you describe yourself?

What type of material are you interested in?

What type of inquiry is this?

How can we contact you?

* Mandatory Fields

Request a sample
formVersion
{"FieldName":"productName","Endpoint":"https://covestro-prod-ffm.apimanagement.eu2.hana.ondemand.com/hybrispcm/products_typeahead?identKey=GB6LiyNSG0YYxXXEpmO8EyoUdFLN0Roi&max=5&lang=en&extended=true","Language":"en","PermissionQuery":"","BrandLabel":"Brand","ProductLabel":"Product","NoResultLabel":"","MaxItem":10}

Request a sample

sign up successful!

Request a quote
formVersion
{"FieldName":"productName","Endpoint":"https://covestro-prod-ffm.apimanagement.eu2.hana.ondemand.com/hybrispcm/products_typeahead?identKey=GB6LiyNSG0YYxXXEpmO8EyoUdFLN0Roi&max=5&lang=en&extended=true","Language":"en","PermissionQuery":"","BrandLabel":"Brand","ProductLabel":"Product","NoResultLabel":"","MaxItem":10}

Request a quote

sign up successful!

Compare