Bayhydur® ultra 2700

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). As a hardener for aqueous two-component polyurethane systems.

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一般特征

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
As a hardener for aqueous two-component polyurethane systems.

储存条件

- 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.

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技术属性和数据表

命名属性特征

属性名称 测试方法 单位 数值
NCO content M105-ISO 11909 % 10.6 ± 0.3
Monomeric HDI M106-ISO 10283 < 0.10
Monomeric HDI M106-ISO 10283 < 0.10
Color value (Hazen) M017-EN 1557 ≤ 150
Viscosity at 23 °C, (D = 200 s^-1) M014-ISO 3219/A.3 mPa*s 75 ± 15
Non-volatile content (2.2 g / 120 min / 100°C) M020-ISO 3251 % 65 ± 2

命名属性规范

属性名称 测试方法 单位 数值
Flash point DIN EN ISO 2719 °C approx. 61
Density at 20 °C DIN 51757 g/ml approx. 1.06
Equivalent weight approx. 396

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