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材料类型
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材料
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一般特征
Desmodur ultra N 3800 is an aliphatic polyisocyanate (flexibilizing HDI trimer).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.
It is suitable for use as the hardener component for lightfast polyurethane coating systems.
储存条件
Desmodur ultra N 3800 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Due to the raw materials used, the product can occasionally exhibit temperature-dependent turbidity. This turbidity can be reversed by thinning with solvents or heating carefully to maximum 50°C without adversely affecting the quality of the product. Recommended storage temperature is 0º-30ºC.
样品
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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 |
|---|---|---|---|
| Weight per gallon at 20°C | lb. | 9.33 | |
| Equivalent weight | approx. 382 | ||
| Viscosity at 25^oC | mPa∙s | approx. 5,500 | |
| Flash point | °C | approx. 235 | |
| Density at 20°C | g/cm^3 | 1.12 |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| NCO content | % | 11.0 ± 0.5 | |
| Monomeric HDI | % | < 0.1 | |
| Hazen color value | ≤ 80 | ||
| Viscosity at 23°C | mPa∙s | 6,000 ± 1,200 |
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技术数据表
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安全数据表无可用直接下载，请访问 www.productsafetyfirst.covestro.com
