DOWSIL™ 786 Silicone Sealant - Mildew-Resistant Sealant

Dow Chemicial

RTV786-10OZ-WHT_EACH

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DOWSIL™ 786 Silicone Sealant

High-performance silicone sealant designed for nonporous surfaces in high-humidity and temperature-extreme environments, offering mildew resistance and long-lasting flexibility.

Key Features and Benefits

  • Mildew Resistant: Cured sealant resists mildew growth, making it ideal for bathrooms and kitchens.
  • Permanently Flexible: Maintains flexibility without shrinking, cracking, or crumbling, even after years of exposure.
  • Stain and Spot Resistant: Prevents discoloration and retains its original design properties.
  • High Durability: Designed for high-humidity environments and temperature extremes.
  • Regulatory Compliant: Meets FDA Regulation No. 21 CFR 177.2600 and NSF standards.

Detailed Product Description

DOWSIL™ 786 Silicone Sealant is a premium one-part acetoxy silicone sealant formulated for sealing nonporous surfaces in areas exposed to high humidity and temperature fluctuations. It is particularly effective around showers, tubs, sinks, and plumbing fixtures, providing a durable seal that resists mildew growth and discoloration.

This sealant remains permanently flexible and resists cracking or crumbling, ensuring long-term reliability. It adheres well to surfaces like glass and nylon 6/6, making it a versatile choice for residential and commercial applications. With a tack-free time of just 20 minutes and a shelf life of up to 900 days, DOWSIL™ 786 Silicone Sealant is a dependable solution for demanding environments.

Learn more about the history of the DOWSIL™ brand and its transition from Dow Corning in our detailed blog post.

Applications

  • Sealing around showers, tubs, sinks, and plumbing fixtures.
  • Nonporous surfaces in kitchens, bathrooms, and other high-humidity areas.
  • Residential and commercial construction projects requiring water-resistant seals.

Technical Specifications

  • Product Type: Silicone Sealant
  • Cure System: 1-Part Cure
  • Adhesion: Glass, Nylon 6/6
  • Chemistry: Acetoxy
  • Colors Available: White, Clear
  • Tack-Free Time: 20 minutes
  • Durometer (Shore A): 25
  • Tear Strength: 25 ppi
  • Tensile Strength: 325 psi
  • VOC Content: 22 g/liter
  • Shelf Life: 900 Days

Available Sizes and Part Numbers

  • 300mL / 10.1oz Tubes:
    • White: PN 4074663
    • Clear: PN 4074662

Why Choose DOWSIL™ 786 Silicone Sealant?

  • Proven mildew resistance for humid environments.
  • Durable and flexible for long-term performance.
  • Backed by the trusted DOWSIL™ brand legacy.

Customer Reviews

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Customer Reviews

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C
Christopher Brown
Worked perfectly

This is the stuff my cabinet shop uses to seal backsplash, glue solid surface to the sub top, etc. I bought this knowing it would work for a side job and didn't steal it from my employer. Will buy again for any other side jobs.


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