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Desmodur® N 3500

Desmodur N 3500 is an aliphatic polyisocyanate (HDI allophanate trimer). It is used as the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.

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材料类型

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材料

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一般特征

Desmodur N 3500 is an aliphatic polyisocyanate (HDI allophanate trimer).
It is used as the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.

储存条件

Desmodur N 3500 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 5º-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
Viscosity at 50^oC mPa∙s approx. 4,200
Density at 20^oC g/cm^3 approx. 1.17
Flash point °C 208
Equivalent weight approx. 215

命名属性规范

属性名称 测试方法 单位 数值
Color value (Hazen) < 100
NCO-content % approx. 19.5
Monomeric HDI % < 0.25
Viscosity at 23^oC mPa∙s approx. 35,000

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技术数据表
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