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  • Adhesives

Desmodur® ultra DA-L

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate. Desmodur® ultra DA-L is a liquid polyisocyanate, emulsifiable in aqueous polymer dispersions.

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About

Product Types

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

Material

Adhesives
Ultra-low monomer, Waterborne, Heat activated, Moisture resistant

General Characterization

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate.
Desmodur® ultra DA-L is a liquid polyisocyanate, emulsifiable in aqueous polymer dispersions. Any occasional turbidity or precipitation visible is caused by very small amounts of processing aids. These have no adverse effect on the processing and final properties of the cured adhesives. It can be used as a crosslinking agent for largely pH-neutral aqueous polymer dispersions, such as polyurethane, polyvinylacetate, polyacrylate and synthetic rubber dispersions. Crosslinking raises the resistance of the bonds to heat, water, plasticizers and numerous solvents.

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

60 l metal canister, contents 60 kg.

Technical Properties & Datasheets

Property Name Test Method Unit Value
Monomeric HDI M106-ISO 10283 % < 0.10
NCO content M105-ISO 11909 % 20.0 ± 1
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 3,000 ± 600

Property Name Test Method Unit Value
Density at 20 °C DIN 51757 g/ml approx. 1.16
Flash point DIN EN 22719 °C 215

Downloads

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