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Desmodur® N 3500

Aliphatic polyisocyanate (HDI allophanate trimer). As the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.

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About

Product Types

  • PIC
  • Crosslinkers
  • Hardeners
  • Aliphatic polyisocyanate
  • Isocyanate
  • Polyisocyanurate
  • Polyisocyanate

Material

3D Print
Weather resistant
Coatings, paints & inks
High functional, Solvent-free

General Characterization

Aliphatic polyisocyanate (HDI allophanate trimer).
As the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.

Storage Conditions

- Storage in original sealed Covestro container.

-
Recommended storage temperature: > 0 - 30 °C.

-
Protect from moisture, heat and foreign material.

General information: The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Density at 20 °C DIN 51 757 g/cm3 approx. 1.17
Viscosity at 50 °C M014-ISO 3219/A.3 mPa*s approx. 4,200
Equivalent weight approx. 215
Flash point DIN EN ISO 13736 °C 208

Specifications

Property Name Test Method Unit Value
NCO-content M105-ISO 11909 % approx. 19.5
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s approx. 35,000
Color value (Hazen) M017-EN 1557 < 100
Monomeric HDI M106-ISO 10283 % < 0.25

Downloads

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

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