Bayhydur® ultra 3100

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). As the hardener component for high-quality aqueous two-component polyurethane systems and as an additive to improve the property profile of aqueous coating and adhesive systems.

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Product Types

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Material

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General Characterization

Bayhydur® ultra 3100 is a hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). It is used as a hardener component for high-quality aqueous two-component polyurethane systems and as an additive to improve the property profile of aqueous coating and adhesive 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

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Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
NCO content % 17.4 ± 0.5
Monomeric HDI % < 0.10
Viscosity @ 23°C mPa*s 2800 ± 800
Color value (Hazen) ≤ 60

Specifications

Property Name Test Method Unit Value
Flash point °C > 250
Equivalent weight approx. 241
Density @ 20°C g/ml approx. 1.16
Viscosity @ 25°C mPa*s approx. 2500

Downloads

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

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