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Allgemeine Charakterisierung
Bayhydur 2547 is a hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
It is suitable as a hardener for waterborne two-component coatings, top coats, sealers and as an additive to enhance the property profile.
It is suitable as a hardener for waterborne two-component coatings, top coats, sealers and as an additive to enhance the property profile.
Lagerungsbedingungen
Bayhydur 2547 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. 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. Recommended storage temperature is 0º-30ºC.
Probenahme
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Technische Eigenschaften & Datenblätter
Genannte Eigenschaften Merkmale
Name der Eigenschaft | Prüfverfahren | Einheit | Wert |
---|---|---|---|
Flash point | °C | approx. 185 | |
Density at 20°C | g/ml | approx. 1.15 |
Genannte Eigenschaften Spezifikation
Name der Eigenschaft | Prüfverfahren | Einheit | Wert |
---|---|---|---|
Hazen color value | ≤ 150 | ||
NCO content | % | 22 - 23 | |
Viscosity at 23°C | mPa∙s | 570 - 730 | |
Monomeric HDI | % | < 0.5 |
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Technisches Datenblatt
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