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  • Adhesives
  • Coatings, paints & inks

Desmodur® E 29

Desmodur E 29 is a polyisocyanate prepolymer based on diphenylmethane diisocyanate.It is suitable for use as a binder in the formulation of solvent-free and high-solids coatings for structural and corrosion protection.

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About

Product Types

  • PIC
  • MDI
  • Prepolymer
  • Crosslinkers
  • Polyisocyanate
  • Hardeners
  • Isocyanate
  • Reactive system

Material

Adhesives
Moisture resistant, Solvent-free
Coatings, paints & inks
Solvent-free, Hard

General Characterization

No data available

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Product description

Desmodur E 29 is a polyisocyanate prepolymer based on diphenylmethane diisocyanate.It is suitable for use as a binder in the formulation of solvent-free and high-solids coatings for structural and corrosion protection.

Applications

Solvent-free moisture-curing one-component primers based on Desmodur E 29 are suitable for sealing concrete.Desmodur E 29 can also be used to formulate one-component systems for corrosion protection applications.As with any product, use of Desmodur E 29 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

Form supplied

Form supplied is a solvent-free brown liquid.

Specification

Property Test Condition Value Unit Standard
NCO content 24 ± 1 %
Viscosity (25° C 220 ± 80 mPa∙s

Typical Values

Property Test Condition Value Unit Standard
Flash point approx. 210 °C
Density at 20° C approx. 1,17 g/ml
Equivalent weight approx. 175

Compatibility

Desmodur E 29 is compatible with many flexibilizers and liquid extender resins, as well as with many polyether, polyester and polyether ester polyols. Compatibility should be tested in individual cases.

Storage

Desmodur E 29 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Storage at higher temperatures may result in an increase in viscosity. Storage at lower temperatures may result in the formation of crystalline deposits. However, the crystals can be melted by heating gently. Recommended storage temperature is 10º-30ºC.

Storage time

Desmodur E 29 has a shelf life of six months from date of receipt at customer, provided the material is stored in sealed original containers at the recommended storage temperature.

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 .

Downloads

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

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