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材料类型
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材料
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一般特征
Desmodur N 3300A is an aliphatic polyisocyanate (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 N 3300A 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. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product. Recommended storage temperature is 0º-30ºC.
样品
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包装类型
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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 |
|---|---|---|---|
| Flash point | °C | approx. 238 | |
| Specific gravity at 25°C | g/cm^3 | 1.17 | |
| Weight per gallon at 25°C | lb. | 9.75 | |
| Viscosity at 23°C | mPa∙s | approx. 3,000 | |
| Equivalent weight | approx. 193 |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Viscosity at 25°C | mPa∙s | 2,500 ± 750 | |
| Hazen color value | ≤ 40 | ||
| NCO content | % | 21.8 ± 0.3 | |
| Monomeric HDI | % | ≤ 0.15 |
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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
