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  • Adhesives
  • Coatings

Bayhydur® 401-70

Hydrophilically modified aliphatic IPDI-polyisocyanate. As a co-reactant for aqueous resins and as a hardener for chemically resistant and weather-stable coating systems.

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About

Product Types

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

Material

Coatings
Easy mixing, Hard, Weather resistant, Waterborne
Adhesives
Foam bonding, Heat activated, Moisture resistant, Waterborne

General Characterization

Bayhydur 401-70 is a hydrophilically modified aliphatic polyisocyanate based on isophorone diisocyanate (IPDI).
As the co-reactant for aqueous resins and as the hardener for chemically resistant and weather-stable coating systems.

Storage Conditions

Bayhydur 401-70 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 IPDI % < 0.35
Viscosity at 23oC, (D = 81,8 s-1) mPa∙s 400 - 800
Color value ≤ 60
NCO content % 8.9 - 9.9
Non-volatile content (0.2 g / 60 min / 120oC) % 68 - 72

Property Name Test Method Unit Value
Flash point °C approx. 40
Density at 20oC g/cm3 approx. 1.07
Equivalent weight approx. 440

Downloads

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