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DOWSIL™ 791T Weatherproofing Sealant

A premium one-part, easy to use, neutral cure silicone sealant with excellent weatherability and flexibility, and an odorless cure. It is low modulus with outstanding primerless adhesion to a wide variety of porous and non-porous substrates.

Properties

These values are typical properties and are not intended for use in preparing specifications.

  • Adhesion to Yes No Glass, Masonry, Paint, Stone, Steel, Wood, Brickwork, Ceramic, Concrete
  • Application Temperature Range Yes No 5 to 40 °C
  • Color Yes No Clear
  • Cure Type Yes No Alkoxy Cure
  • Durometer - Shore A Yes No 20 Shore A
  • Low Odor Yes No true
  • Movement Capability Yes No > 50 %
  • Number of Parts Yes No One
  • Primerless Adhesion Yes No Primerless
  • Resistance Type Yes No Ozone Resistance, Thermal Resistance, UV Resistance
  • Specific Gravity @ 25C Yes No 1.03
  • Tack-Free Time-50% RH Yes No 35 to 50 Minutes
  • Toolable Yes No true
  • DOWSIL™ 993 Structural Glazing Base and Catalyst
    A two-component, neutral curing silicone formulation specifically developed for the structural bonding of glass, metal and other building components.

  • DOWSIL™ 121 Structural Glazing Sealant
    A fast-curing structural silicone sealant for use in structural and weatherseal applications.

  • 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™ Primer-C OS

  • DOWSIL™ 789 Silicone Weather Proofing Sealant
    A one part, neutral cure, architectural grade sealant designed for general weathersealing. It easily extrudes in any weather an quickly cures at room temperature to produce a durable, flexible silcone rubber seal.

  • DOWSIL™ 995 Silicone Structural Sealant
    A one-component, self-priming, shelf-stable, neutral-cure, elastomeric adhesive specifically formulated for silicone structural glazing and exhibits excellent unprimed adhesion to most building substrates. This product has superior unprimed adhesion for structural glazing applications for hurricane or impact rated windows and doors. It has a movement capability of +/- 50%.

  • DOWSIL™ 1200 OS Primer
    An air drying primer supplied as a dilute solution of moisture reactive materials in volatile siloxane and is used to improve both the quality and speed of adhesion development to room temperature vulcanizing silicone sealants to a variety of common non-porous substrates.

  • 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.

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DOWSIL™ 791T Weatherproofing Sealant
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DOWSIL™ 791T Weatherproofing Sealant


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DOWSIL™ 791T Weatherproofing Sealant
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