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关于
材料类型
- PIC
- MDI
- 预聚物
- 交联剂
- 聚异氰酸酯
- 固化剂
- 异氰酸酯
- 反应型体系
材料
- 涂料、油漆和油墨
- 坚硬, 无溶剂
- 胶粘剂
- 快速粘合, 防潮, 无溶剂
一般特征
Desmodur E 21 is an aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI).
This product is suitable 1.) as a binder for the formulation of moisture-curing, one-component coatings and adhesives and 2.) as a hardener for hydroxyl-bearing co-reactants.
This product is suitable 1.) as a binder for the formulation of moisture-curing, one-component coatings and adhesives and 2.) as a hardener for hydroxyl-bearing co-reactants.
储存条件
Desmodur E 21 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is sensitive to moisture and should therefore be stored in its sealed original containers. Storage at high temperatures will lead to an increase in viscosity and a reduction of the NCO content. Recommended storage temperature is room temperature (approximately 23ºC).
样品
无可用数据
包装类型
无可用数据
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 |
|---|---|---|---|
| Equivalent weight | 251 - 274 | ||
| Flash point | °C | > 250 | |
| Density at 20^oC | g/ml | approx. 1.15 |
命名属性规范
| 属性名称 | 测试方法 | 单位 | 数值 |
|---|---|---|---|
| Viscosity at 25°C | mPa∙s | 5,400 ± 1,300 | |
| NCO content | % | 16.0 ± 0.7 |
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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
