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Bayhydrol® XP 2637

Ionic/non-ionic polycarbonate ester polyurethane dispersion. Bayhydrol® XP 2637 is a solvent-free polyurethane dispersion which can be used to formulate coatings that harden at room temperature or baking coatings. It allows coating of a wide variety of substrates ranging from hard ones to flexible ones such as leather, textiles, plastics and metals. Coatings formulated with Bayhydrol® XP 2637 exhibit high scratch resistance and lightfastness. Other benefits of Bayhydrol® XP 2637 are good aging stability and very good hydrolysis resistance.

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General Characterization

Ionic/non-ionic polycarbonate ester polyurethane dispersion.
Bayhydrol® XP 2637 is a solvent-free polyurethane dispersion which can be used to formulate coatings that harden at room temperature or baking coatings. It allows coating of a wide variety of substrates ranging from hard ones to flexible ones such as leather, textiles, plastics and metals.
Coatings formulated with Bayhydrol® XP 2637 exhibit high scratch resistance and lightfastness. Other benefits of Bayhydrol® XP 2637 are good aging stability and very good hydrolysis resistance.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 5 - 40 °C.

- Protect from frost, heat and foreign material.

General information: The product cannot be used if it has been frozen. The containers must be well closed to prevent the evaporation of water which may result in the formation of a non-redispersible film. Brief heating to max. 50 °C has no adverse effect on product properties.

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Technical Properties & Datasheets

Property Name Test Method Unit Value
Viscosity at 23 °C, D = approx. 40 s-1 DIN EN ISO 3219/A.3 mPa*s max. 750
pH-value DIN ISO 976 6.5 - 8.5
Non-volatile content (1g / 1h / 125 °C) DIN EN ISO 3251 % 38 - 42

Property Name Test Method Unit Value
Density at 23 °C DIN EN ISO 2811-2 g/ml approx. 1,1

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