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DOWSIL™ 791 Weatherproofing Sealant

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单组分、中等模量的弹性密封胶，用于一般耐候应用。本品是一种可固化为弹性硅橡胶建筑接缝密封的有机硅配方。

用途:

General glazing and weather sealing in curtain wall and building facades

优势:

Ease of application – ready to use as supplied
Excellent rheology, low string upon gunning
Excellent weatherability, virtually unaffected by sunlight, rain, snow, ozone
Neutral cure
Low odor

性能

这些数值为典型性能，并且不用于在规格制定过程中使用。

典型性能

下垂度(垂流) 是否 0 mm
位移是否中等
位移能力 是否 -50 to 50 %
使用位置 是否工作地点
化学是否中性
可操作时间 是否 20 Minutes
固化体系 是否单组分固化
基材是否非多孔
外观是否不透明
室温固化-天数 是否 7 to 14 Days
应用温度范围 是否 4 to 40 °C
拉伸粘接强度(T/A) 是否 120 psi
挥发性有机物 是否 45 g/liter
无底涂剂的粘合力 是否无需底涂
最低使用温度 是否 -50 °C
最高使用温度 是否 150 °C
比重 @ 25C 是否 1.51
流平是否无流挂
相对湿度50%时的表干时间 是否 45 Minutes
硬度-Shore A 是否 25 to 30 Shore A
颜色是否定制色, 深灰色, 灰色, 白色, 石灰石, 金属灰, 青铜色, 预制白, 黑色