Submit
  • Adhesives

Desmodur® 44 M Fused

Desmodur® 44 M Fused is a monomeric diphenylmethane-4,4'-diisocyanate (MDI).Desmodur® 44 M Flakes is a monomeric diisocyanate that is solid at room temperature and liquid above around 40 °C.

Contact expert Request a sample Request a quote
i
Market Switch
Selection will influence the results you get.
Copied to clipboard

About

Product Types

  • MMDI
  • Isocyanate
  • Reactive system
  • Aromatic polyisocyanate

Material

Adhesives
Solvent-free

General Characterization

Desmodur® 44 M Fused is a
monomeric diphenylmethane-4,4'-diisocyanate (MDI).
Desmodur® 44 M Fused is a monomeric diisocyanate that is solid at room temperature and liquid above around 40 °C. It is suitable for combination with Baycoll®, Desmophen® and Acclaim® in the formulation of adhesives and polyurethane coating resins.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: < 5 °C.

- Protect from moisture, heat and foreign material.

General information: The product is sensitive to moisture. Like all isocyanates, it reacts with water to form insoluble urea derivatives and carbon dioxide. In closed containers, the formation of carbon dioxide can results in a dangerous build-up of pressure. Contact with air, especially coupled with exposure to light, accelerates the yellowing of the product. Generally speaking, the processing properties are not affected by yellowing. As a result of dimerization (formation of uretdione), the product is sensitive to heat. The solid product dimerizes more quickly at room temperature than the liquid product stored at 42 °C. Therefore, solid product should be stored at temperatures below 5 °C and melted quickly and carefully. Although dimerization declines with decreasing temperature, the storage stability is also limited at 5 °C.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Viscosity at 40 °C (2011-0313703-95) mPa*s 4.1
Phenyl isocyanate content (2011-0489801-95) ppm max. 10
Vapor pressure at 20 °C hPa < 10^-5
NCO content (theoretical) % by wt. 33.6
Freezing point (2011-0260102-92) °C min. 38.4
Density at 40 °C DIN 51 757 g/cm3 approx. 1.19

Specifications

Property Name Test Method Unit Value
4,4'-MDI MDI-01-06 % min. 98.2
2,4'-MDI MDI-01-06 % max. 1.8
Hydrolysable chlorine MDI-01-04 mg/kg max. 50

Downloads

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

Do you want to know more about Desmodur® 44 M Fused?
Get in touch with our experts!

How would you describe yourself?

What type of material are you interested in?

What type of industry are you interested in?

What type of inquiry is this?

How can we contact you?

* Mandatory Fields

{"FieldName":"","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":"No results for","MaxItem":10}
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":"No results for","MaxItem":10}

Request a sample

Hello! Thanks for reaching out to us.
We have received your request and one of our experts will be in touch with you as soon as possible.
In the meantime, feel free to discover our innovative material solutions!

Speak to you soon,
Your Covestro Team

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":"No results for","MaxItem":10}

Request a quote

Hello! Thanks for reaching out to us.
We have received your request and one of our experts will be in touch with you as soon as possible.
In the meantime, feel free to discover our innovative material solutions!

Speak to you soon,
Your Covestro Team

Compare