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DOWSIL™ 991 Silicone High Performance Sealant

一种中等模量的弹性密封胶,专为耐候性敏感多孔石和金属基板。

用途:

  • Specially formulated to prevent staining of porous substrates such as natural stone and minimize streaking on metal panels and glass.
  • Forms a durable, flexible, watertight bond with most building materials and can be used for new and remedial construction applications.

优势:

  • Non-staining on natural stone and reduces residue rundown on metal and glass panels
  • Medium modulus, high movement capability - can accommodate ± 50% movement in a properly designed joint
  • Good unprimed adhesion to a wide variety of building materials such as natural stone, glass, metal, ceramic tile, fluorocarbon paint finishes and anodized aluminum
  • Outstanding UV and weathering resistance
  • Good working time
  • 10-year Limited Weatherseal and Non-Staining Warranties are available
  • One-part easy to use formulation
  • Formulated to prevent staining of porous substrates and reduce streaking on glass and metal panels to improve building aesthetic performance
  • Excellent weathering and durability resulting in longer lifecycle and superior long-term weatherproofing
  • Excellent unprimed adhesion to most building substrates

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) < 2.55 mm
  • 位移 中等
  • 位移能力 -50 to 50 %
  • 使用位置 工作地点, 工厂
  • 保质期 360 Days
  • 化学 中性
  • 可操作时间 20 Minutes
  • 固化体系 单组分固化
  • 基材 多孔, 非多孔
  • 外观 不透明, 半透明
  • 延伸率 800 %
  • 抗撕裂强度 34.27 ppi
  • 抵御种类 抗紫外线, 热阻, 耐臭氧, 防水
  • 拉伸强度 246 psi
  • 模量@150%延伸率,最大 49.3 psi
  • 比重 @ 25C 1.24
  • 流平 无流挂
  • 温度范围 -29 to 50 °C
  • 特殊功能 无污染密封剂
  • 相对湿度50%时的表干时间 40 Minutes
  • 硬度-Shore A 24 Shore A
  • 组分 单组份
  • 防水 true
  • 颜色 定制色, 灰色, 石灰石, 青铜色, 黑色

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DOWSIL™ 991 Silicone High Performance Sealant
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DOWSIL™ 991 Silicone High Performance Sealant
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