DOWSIL™ 791 Weatherproofing Sealant

A one-part, medium-modulus, elastomeric sealant designed for general weathersealing. It is a silicone formulation that cures to a flexible and curable silicone rubber building joint seal.



  • Adhesion to エナメル&反射ガラス, 押出しミル仕上げ, フッ化炭素被膜アルミニウム, ガラス, グラナイト, アロジンアルミニウム, 熱強化ガラス, 軽量ストーンパネル, Low E被覆ガラス, 大理石, 煉瓦, 金属, 金属パネル, 塗装金属, アルミニウム, プラスチック, ポリエステル・パウダー被覆アルミニウム/スチール, シリコーン, 石材, スチール, ステンレススチール, ビニール/PVC-U, 木, アルマイト, ライムストーン, レンガ積み, コンクリート
  • Application Temperature Range 4 to 40 °C
  • Color ブラック, ブロンズ, グレー, ライムストーン, プレキャストホワイト, ホワイト, カスタムカラー, ダークグレー, メタルグレー
  • Durometer - Shore A 25 to 30 Shore A
  • Flow/Sag (Slump) 0 mm
  • Movement Capability -50 to 50 %
  • Primerless Adhesion プライマーレス
  • Room Temperature Cure - Days 7 to 14 Days
  • Service Temperature High 150 °C
  • Service Temperature Low -50 °C
  • Specific Gravity @ 25C 1.51
  • Tack-Free Time-50% RH 45 Minutes
  • Tensile Adhesion (T/A) 120 psi
  • Volatile Organic Content 45 g/liter
  • Working Time 20 Minutes
  • DOWSIL™ 795 Silicone Building Sealant
    A one-part, cold-applied, non-sagging silicone material that cures to a medium modulus silicone rubber upon exposure to atmospheric moisture.

  • DOWSIL™ 790 Silicone Building Sealant
    A one-part silicone formulation that cures in the presence of atmospheric moisture to produce a durable, fire-resistant, flexible and ultra-low-modulus silicone rubber building joint seal.

  • DOWSIL™ Contractors Weatherproofing Sealant
    A one-part, moisture cure, medium modulus sealant that provides durable, flexible, watertight joints and offers outstanding unprimed adhesion to most non-porous substrates. It is specifically developed for sealing dynamically moving joints.

  • DOWSIL™ 983 Structural Glazing Sealant Base and Curing Agent

    Designed for specialized use where dual structural and weatherseal applications are desired for factory glazing and curtainwall production. Once cured, this structural sealant forms a durable, flexible, watertight bond that can be warranted for 20 years and used in ±25% movement weatherseal applications. It has excellent unprimed adhesion to glass, alodine, and anodized aluminum1, although DOWSIL™ Primer-C OS is recommended for fast and consistent adhesion, especially to high-performance substrates approved for architectural structural glazing applications.



DOWSIL™ 791 Weatherproofing Sealant

DOWSIL™ 791 Weatherproofing Sealant


DOWSIL™ 791 Weatherproofing Sealant
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