DOWSIL™ 736 Heat Resistant Sealant - High-Temperature RTV Adhesive

Dow Chemicial

RTV736-30ZRED

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DOWSIL™ 736 Heat Resistant Sealant

One-part, red RTV adhesive and sealant designed to withstand high temperatures up to 600°F (315°C). Ideal for critical sealing and bonding applications in industrial and aerospace environments.

Key Features and Benefits

  • High Heat Resistance: Performs in continuous exposure to 500°F (260°C) and intermittent exposure up to 600°F (315°C).
  • Non-Slumping: Will not sag or run, allowing overhead or side-wall application.
  • Versatile Application: Suitable for gasketing, encapsulating, and protective coatings.
  • Durable Performance: Retains flexibility and strength under extreme conditions.
  • Certified for Safety: Complies with FDA, MIL Spec, NSF, and UL standards.

Detailed Product Description

DOWSIL™ 736 Heat Resistant Sealant is a high-performance, one-part RTV adhesive designed for critical sealing, bonding, and encapsulating applications exposed to extreme temperatures. Its red silicone formulation is specifically engineered to handle continuous exposure to temperatures as high as 500°F (260°C) and intermittent spikes up to 600°F (315°C).

This non-slumping sealant adheres to various materials, including glass, ABS, copper, and nylon 6/6, making it versatile for use in industrial ovens, aerospace gasketing, and heating element encapsulation. Its resistance to sagging ensures easy application on vertical or overhead surfaces.

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

Applications

  • Sealing and encapsulating heating elements in appliances.
  • Aerospace gasketing and industrial ovens.
  • Moving oven belts and bag filters on smoke stacks.
  • Protective coatings and potting in high-temperature environments.

Technical Specifications

  • Product Type: RTV Adhesive/Sealant
  • Temperature Range: Continuous exposure to 500°F (260°C); intermittent exposure to 600°F (315°C)
  • Adhesion: ABS, Copper, Glass, Nylon 6/6
  • Durometer (Shore A): 26
  • Elongation: 600%
  • Tensile Strength: 348.1 psi
  • Specific Gravity: 1.04 @ 25°C
  • Shelf Life: 900 Days

Available Sizes and Part Numbers

  • 4.5KG / 10lb Pail: PN 3145824
  • 3oz / 90mL Tube: PN 2423472
  • 10.1oz / 300mL Cartridge: PN 2086433

Why Choose DOWSIL™ 736 Heat Resistant Sealant?

  • Exceptional heat resistance for demanding applications.
  • Versatile usage across industrial, aerospace, and consumer applications.
  • Backed by the trusted DOWSIL™ legacy, formerly Dow Corning.

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