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Bayhydrol® A 2470

Aqueous hydroxyfunctional polyacrylic dispersion.Waterborne 2K-Polyurethane varnishes in combination with aliphatic Polyisocyanates.

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Product Types

  • Dispersion
  • Acrylate dispersion

Material

สารเคลือบ สี และหมึกพิมพ์
Hard, Waterborne, Flexible, Elastic

General Characterization

Bayhydrol A 2470 is an aqueous hydroxyfunctional polyacrylic dispersion.
It is suitable for use in waterborne two-component polyurethane varnishes in combination with aliphatic polyisocyanates.

Storage Conditions

Bayhydrol A 2470 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. Short-time cooling down to -18°C does not typically damage the product, but the viscosity may increase significantly. Prolonged freezing can damage the product irreversibly. Prolonged storage at higher temperatures may result in a decrease of viscosity and/or an increase of average particle size, possibly resulting in sedimentation or coagulation. The viscosity of the product is largely governed by the pH. As the pH may decrease during storage, a decrease in viscosity is also to be expected. The viscosity can be adjusted to its original value by the addition of small amounts of an aqueous 10% solution of dimethyl ethanol amine. Recommended storage temperature is > 0º-30ºC.

Sampling

No data available

Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Density at 20°C g/ml approx. 1.06
Hydroxyl content (on solid resin, calculated) % approx. 3.9
Acid value mg KOH/g approx. 10

Specifications

Property Name Test Method Unit Value
pH (1:4 in demineralized water) 7.0 - 8.0
Viscosity at 23°C, D= approx. 40 s^-1 mPa∙s 1,500 - 3,000
Non-volatile content (1g/1h/125°C/convection oven) % 44 - 47

Downloads

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

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