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  • Coatings, paints & inks

Desmodur® BL 3175 SN

Blocked aliphatic HDI-polyisocyanate. With Desmophen® grades to formulate lightfast one-component polyurethane stoving coatings; as an additive to improve flexibility and adhesion.

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About

Product Types

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

Material

Coatings, paints & inks
Solventborne, Thermally resistant, Flexible, Elastic

General Characterization

Blocked, aliphatic polyisocyanate based on HDI.
In combination with Desmophen® grades to formulate lightfast, one-component polyurethane stoving coatings; as an additive in conventional stoving systems to improve flexibility and adhesion.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 30 °C.

- Protect from moisture, heat and foreign material.

General information: 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
Blocked NCO content % approx. 11.1
Viscosity at 25 °C M014-ISO 3219/A.3 mPa*s approx. 2,800
Density at 20 °C DIN EN ISO 2811 g/ml approx. 1.06
Equivalent weight approx. 380
Flash point DIN 53 213/1 °C approx. 45

Specifications

Property Name Test Method Unit Value
Non-volatile content (0.2 g / 60 min / 80 °C) M020-ISO 3251 % 75 ± 2
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 3,300 ± 400
Free NCO content, modified M105-ISO 11909 % ≤ 0.2
Color value (Hazen) M017-EN 1557 ≤ 60

Downloads

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

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