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  2. DOWSIL™ 758 Silicone Weather Barrier Sealant

DOWSIL™ 758 Silicone Weather Barrier Sealant

A one part, neutral cure silicone sealant, designed for adhering to low energy surfaces common in sheet or peel and stick weather resistant barriers. Primerless adhesion to LDPE, anodized aluminum, vinyl, powder coated aluminum, Kynar® coated aluminum.

用途:

Strong adhesion strength to:

  • Self-adhered window flashing and wraps
  • Nonwoven spunbound window flashing and wraps
  • Polyethylene wraps
  • Polyethylene surfaces
  • Polypropylene surfaces
  • Common polyolefins
  • PVC
  • Steel, aluminum and metals
  • Fluorinated surfaces

优势:

  • High adhesion strength
  • Long-term silicone durability
  • Low-VOC formulation
  • Single-component, primerless application
  • ±25% movement capability
  • Passes 5,000 hr QUV test

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 0.06 mm
  • 位移 是 否 中等
  • 位移能力 是 否 -25 to 25 %
  • 使用位置 是 否 工作地点
  • 化学 是 否 中性
  • 可操作时间 是 否 15 Minutes
  • 固化体系 是 否 单组分固化
  • 固化类型 是 否 自然固化
  • 基材 是 否 非多孔
  • 外观 是 否 不透明
  • 延伸率 是 否 800 %
  • 抵御种类 是 否 抗紫外线
  • 拉伸强度 是 否 200 psi
  • 挥发性有机物 是 否 25 g/liter
  • 无底涂剂的粘合力 是 否 无需底涂
  • 流平 是 否 无流挂
  • 特殊功能 是 否 与特种塑料之间的粘合力
  • 硬度-Shore A 是 否 30 Shore A
  • 组分 是 否 单组份
  • 颜色 是 否 白色
DOWSIL™ 758 Sealant sticks to most demanding substrates without primer

Get primerless adhesion to window flashing and fenestration materials

Innovative DOWSIL™ 758 Silicone Weather Barrier Sealant solves the challenge posed by plastic- and polyolefin-based window flashing and fenestration materials, sticking to the most demanding substrates without need for a primer.

Detail drawing showing DOWSIL™ 758 Sealant placement

New Submittal Generator Tool
Download and organize your submittal documents. (Available in N. America)

TRY OUT THE TOOL
Solar panel with city scape in background

Energy Efficiency

Unique component in our silicone air barrier system used for challenging weather barrier issues.

Construction worker spraying product onto building

The Silicone Air Barrier System from Dow

Better protect the entire building envelope with a suite of compatible, high-performance silicone technologies.

Edgy glass building with pencil sketch

Design Freedom

Discover more about the unparalleled unprimed adhesion to window flashing and fenestration materials.

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