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  • Adhesives
  • Coatings

Bayhydur® XP 2655

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

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About

Product Types

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

Material

Adhesives
Waterborne, Fast bonding, Heat activated, Moisture resistant
Coatings
Easy mixing, Fast curing, Low viscous, Weather resistant, Waterborne

General Characterization

Bayhydur XP 2655 is a hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
It is suitable as a hardener for waterborne two-component polyurethane systems.

Storage Conditions

Bayhydur XP 2655 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. 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.Recommended storage temperature is 0º-30ºC.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Monomeric HDI % ≤ 0.24
Viscosity at 23°C mPa∙s 2,500 - 4,500
Hazen color value < 60
NCO content % 20.3 - 21.3

Property Name Test Method Unit Value
Flash point °C approx. 192
Density g/cm^3 approx. 1.16

Downloads

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