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Bayhydrol® A 2695

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Materialklassen

  • Acrylatdispersion

Material

Lacke
hart, wasserbasiert, flexibel, elastisch

Allgemeine Charakterisierung

Aqueous hydroxyfunctional polyacrylic dispersion.
Bayhydrol® A 2695 shows a superior chemical resistance. The resistance can be improved by increasing NCO/OH ratio.

Lagerungsbedingungen

- Storage in original sealed Covestro container.

- Recommended storage temperature: > 0 - 25 °C.

- Protect from frost, heat and foreign material.

General information: The product is sensitive to frost. 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. Contamination with certain bacteria, fungi or algae may render the product unusable.
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 triethanol amine.
Storage at temperature above 25 °C up to 30 °C is possible without irreversibly damaging the product. The decrease of pH value and viscosity, however, might be accelerated at this temperature. The values may possibly fall below the lower limits set forth in section “specification” even within the 6 month representation period.

Probenahme

Keine Daten verfügbar

Verpackungsart

Keine Daten verfügbar

Technische Eigenschaften & Datenblätter

Name der Eigenschaft Prüfverfahren Einheit Wert
Non-volatile content (1g / 1h / 125°C) DIN EN ISO 3251 % 40 - 43
pH (1:4 in demineralised water) DIN ISO 976 7.2 - 8.2
Viscosity at 23 °C, D = approx. 40 s-1 DIN EN ISO 3219/A.3 mPa*s 2,000 - 3,500

Name der Eigenschaft Prüfverfahren Einheit Wert
Equivalent weight g/mol approx. 830
Flash point (No flash point up to initial boiling point) DIN EN ISO 2719 °C > 95
Density at 20 °C DIN DIN EN ISO 2811 g/ml approx. 1.06
Acid value DIN EN ISO 3682 mg KOH/g approx. 9.4
Hydroxyl content solid resin (calculated) % approx. 5.0

Downloads

Technisches Datenblatt
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Sicherheitsdatenblatt
Kein direkter Download verfügbar, bitte besuchen Sie www.productsafetyfirst.covestro.com
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