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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.
Mandalay Bay Resort & Casino in Las Vegas, NV

Simply the best-performing weatherseal for stone, concrete and masonry construction

For over 50 years, DOWSIL™ 790 Silicone Building Sealant has been the standard for weathersealing performance in new construction and renovation applications around the world, especially on stone and masonry surfaces. A neutral-cure, one-part sealant that quickly cures to a durable, flexible seal, its excellent movement capabilities (+100/-50 percent of the original joint width) make it ideal for sealing expansion and control joints, precast concrete panels and seismic joints, and EIFS joints. The wide range of colors available makes it easy to match your project.

Properties

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

  • Adhesion to Extruded Mill Finish, Glass, Granite, Heat Strengthened Glass, Light-Weight Stone Panels, Low E Coated Glass, Marble, Masonry, Paint, Silicone, Stone, Wood, Limestone, Brickwork, Ceramic, Concrete
  • Color Adobe Tan, Black, Blue Spruce, Bronze, Charcoal, Gray, Dusty Rose, Limestone, Natural Stone, Rustic Brick, Precast White, Sandstone, White
  • Durometer - Shore A 15 Shore A
  • Number of Parts One
  • Peel Strength 25 ppi
  • Primerless Adhesion Primerless
  • Resistance Type Thermal Resistance, UV Resistance, Water Resistance
  • Room Temperature Cure - Hours 168 to 336 Hours
  • Shelf Life 360 Days
  • Tack-Free Time-50% RH 60 Minutes
  • Tensile Strength 100 psi
  • Volatile Organic Content 23 g/liter
  • Water Resistant true
  • Working Time 10 to 20 Minutes
  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Pastel Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Material Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Deep Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Mid Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

  • 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™ 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.

  • 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.


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Please Contact Dow for additional information.

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DOWSIL™ 790 Silicone Building Sealant
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.

DOWSIL™ 790 Silicone Building Sealant


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DOWSIL™ 790 Silicone Building Sealant
Please Contact Dow for distribution options available for this product.