DOWSIL™ 737 Neutral Cure Sealant - High-Performance RTV Adhesive

Dow Chemicial

RTV737-30ZCLR

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DOWSIL™ 737 Neutral Cure Sealant

Versatile, one-part RTV adhesive/sealant offering excellent adhesion to most materials, fast curing, and exceptional weather resistance. Ideal for industrial assembly and waterproofing applications.

Key Features and Benefits

  • Primerless Adhesion: Adheres to a wide variety of materials, including metals, plastics, glass, and rubbers.
  • Fast Curing: Rapid cure for quick installation and assembly.
  • No Slump or Sag: Stays in place for clean, professional application on vertical and horizontal surfaces.
  • Broad Temperature Performance: Remains flexible in extreme temperatures from -85°F to 350°F (-65°C to 177°C).
  • Exceptional Weather Resistance: Protects against UV light, rain, snow, and temperature extremes.

Detailed Product Description

DOWSIL™ 737 Neutral Cure Sealant is a multipurpose RTV adhesive/sealant designed for a variety of industrial assembly and installation operations. It provides primerless adhesion to most materials, eliminating the need for mechanical fasteners in many applications. This high-performance sealant cures at room temperature to form a durable, flexible bond that withstands extreme temperatures and weather conditions.

With superior adhesion to metals, plastics, painted surfaces, and glass, DOWSIL™ 737 is ideal for sealing refrigerator liners, adhering trim applications, and protecting electrical components. Its non-slumping formula ensures clean, precise application on vertical and horizontal surfaces.

Originally branded under Dow Corning, this product is now part of the DOWSIL™ line. Learn more about the transition in our detailed blog post.

Applications

  • Substitute for mechanical fasteners in appliance assembly.
  • Sealing refrigerator and freezer liners.
  • Waterproofing electrical components and coaxial connectors.
  • Adhering plastic moldings and decals to various substrates.
  • Sealing and protecting instrumentation assemblies.

Technical Specifications

  • Product Type: RTV Adhesive/Sealant
  • Cure System: Neutral Cure
  • Number of Parts: 1
  • Temperature Range: -85°F to 350°F (-65°C to 177°C)
  • Shelf Life: 720 Days
  • Color Options: Clear, Black, White
  • Durometer: 33 Shore A
  • Elongation: >300%
  • Tensile Strength: >175 psi

Available Sizes and Part Numbers

Size Color Part Number
3 oz / 90ml Clear 4098499
10.1 oz / 300ml Clear 4098498
4.5 kg / 8lb Clear 4003560
10.1 oz / 300ml Black 4001479 / 4099911
4.5 kg / 8lb Black 4003582
10.1 oz / 300ml White 4100011

Why Choose DOWSIL™ 737 Neutral Cure Sealant?

  • Flexible and durable performance across a broad temperature range.
  • Excellent weather resistance for long-term protection.
  • Primerless adhesion to most common materials.
  • Versatile for industrial, electrical, and assembly applications.

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