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  • Coatings

Bayhydur® 2858 XP

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI). As a ready-to-use hardener for waterborne two-component polyurethane systems.

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About

Product Types

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

Material

Coatings
Easy mixing, Weather resistant, Waterborne

General Characterization

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI).
As a ready-to-use hardener for waterborne two-component polyurethane systems.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 30 °C.

- Protect from moisture, heat and foreign material.

General information: Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The containers must always be kept tightly closed. The access of water in all forms (moist air, solvents, moist containers) must be prevented, because the generation of carbon dioxide can lead to dangerous increases in pressure. Storage at higher temperatures will result in an increase of color and viscosity.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Color value (Hazen) M017-EN 1557 < 80
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s approx. 500
NCO content M105-ISO 11909 % approx. 13.3
Monomeric IPDI content M106-ISO 10283 % ≤ 0.1
Monomeric HDI content M106-ISO 10283 % ≤ 0.13

Property Name Test Method Unit Value
Equivalent weight approx. 316
Density DIN EN ISO 2811 g/cm3 approx. 1.13
Flash point DIN EN ISO 2719 °C approx. 88

Downloads

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