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  • Coatings, paints & inks
  • Adhesives

Bayhydur® 2655

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).Hardener for waterborne two-component polyurethane systems.

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About

Product Types

  • PIC
  • HDI
  • Isocyanate
  • Polyisocyanurate
  • Reactive system
  • Aliphatic polyisocyanate
  • Hydrophilic polyisocyanate
  • Crosslinkers
  • Polyisocyanate
  • Hardeners

Material

Coatings, paints & inks
Waterborne, Easy mixing, Fast curing, Weather resistant
Adhesives
Waterborne, Fast bonding, Moisture resistant, Heat activated

General Characterization

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
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 increase of color and viscosity.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Density at 20 °C DIN EN 2811 g/cm3 approx. 1.16
Flash point DIN EN ISO 2719 °C approx. 192

Specifications

Property Name Test Method Unit Value
Hazen color value M017-EN 1557 < 60
Monomeric HDI M106-ISO 10283 % ≤ 0.24
NCO content M105-ISO 11909 % 20.3 - 21.3
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 3,500 ± 1,000

Downloads

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

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