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Dow 795 Structural Sealant: Superior Performance for Structural Bonding

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The Dow 795 Silicone Building Sealant is a remarkable one-part, neutral-cure, architectural-grade solution that offers ease of application in all weather conditions and rapid room-temperature curing. This cold-applied silicone sealant transforms into a medium-modulus silicone rubber upon exposure to atmospheric moisture, ensuring durability and flexibility. It can accommodate up to ± 50 percent movement of the original joint dimension when used in a well-designed weather seal joint. In structurally glazed joints, it exhibits the strength necessary to support glass and other panel materials even under high wind loads.

Structural sealants like Dow 795 play a pivotal role in the construction industry by providing not only robust bonding but also crucial flexibility and weather resistance. Their use is essential for creating safe, durable, and efficient buildings, making them a cornerstone of modern construction practices.

Features and Benefits

Exceptional Performance Characteristics

Unparalleled Bonding Strength: Dow 795 Structural Sealant distinguishes itself by delivering remarkable bonding strength. It maintains its robustness and reliability even when exposed to formidable environmental conditions. From enduring sunlight, rain, snow, ozone, to withstanding temperature extremes ranging from -40°F (-40°C) to 300°F (149°C), this sealant remains unwavering, ensuring the long-term preservation of structural integrity.

Enduring Durability: Engineered for longevity, this sealant proves its mettle over time. Its inherent durability equips it to withstand the trials of time, making it an ideal choice for projects that demand resilience and endurance. Whether confronted with harsh weather conditions or structural shifts, Dow 795 consistently delivers enduring performance.

Resilient Weather and UV Resistance: Dow 795 is purposefully crafted to confront the most challenging weather conditions and UV exposure. It refuses to deteriorate or lose effectiveness in the face of sunlight, rain, or other weather-related adversities. Its remarkable UV resistance guarantees that it maintains both structural and aesthetic properties over an extended period.

Versatility Across Applications

Construction Industry Utility: Dow 795 serves as a versatile sealant with widespread application within the construction industry. It excels in sealing and bonding various building components like windows, doors, and panels. Its ability to withstand environmental stressors positions it as a premier choice for both interior and exterior applications in construction.

Crucial Role in Glazing and Curtain Wall Systems: In glazing and curtain wall systems, Dow 795 assumes a pivotal role. It not only provides the requisite bonding strength to secure glass and panels but also offers the flexibility essential for accommodating structural movement. Architects and builders prefer it when working on extensive glass facades and curtain walls due to this unique capability.

Industrial Adaptability: Beyond construction, Dow 795 finds invaluable applications in industrial settings. It effectively seals joints and gaps in industrial equipment and structures, ensuring reliable protection against environmental elements and guaranteeing the prolonged life of these assets.

Application Simplicity and Wide Compatibility

Simplified Application Methods: Dow 795 Structural Sealant is purpose-designed for straightforward application. Whether manually extruded or applied with specialized equipment, it remains consistent and workable in various weather conditions. This versatility renders it suitable for both indoor and outdoor projects, simplifying the sealing process.

Adherence to Diverse Substrates: An outstanding feature of Dow 795 is its compatibility with a broad spectrum of substrates. It exhibits excellent adhesion to materials commonly used in construction and industrial applications, including glass, metal, concrete, and plastics. This versatility ensures its efficacy in diverse projects, providing a reliable bond regardless of the surface.

Technical Specifications

Material Composition

Dow 795 Structural Sealant is composed of a high-quality silicone polymer. This material offers exceptional flexibility and durability, key characteristics for structural bonding. It is free of solvents, making it environmentally friendly and safe to use. The sealant is formulated to resist degradation from exposure to ultraviolet (UV) radiation and extreme weather conditions.

dow 795 structural sealant

Curing Time and Methods

Dow 795 is a one-part, neutral-cure sealant, which means it does not require a separate catalyst or activator for curing. It cures through exposure to moisture in the atmosphere, with curing times varying depending on humidity levels and temperature. Typical curing times range from 7 to 21 days, but it can achieve a skin-over time in as little as 30 minutes, allowing for faster project completion. Proper joint design, depth, and sealing techniques can influence curing times.

Temperature and Environmental Considerations

Dow 795 is designed to perform over a wide temperature range, from -40°F (-40°C) to 300°F (149°C). It maintains its performance characteristics even in extreme weather conditions, including rain, snow, and high temperatures. Its resistance to ozone and UV radiation makes it suitable for outdoor applications, where exposure to sunlight is common. Proper joint design is crucial to accommodate thermal expansion and contraction in varying temperatures.

Comparison with Competing Products

How Dow 795 Compares to Other Structural Sealants on the Market

Dow 795 stands out in the market due to its exceptional bonding strength, weather resistance, and UV stability. Compared to traditional sealants, it offers superior durability, reducing the need for frequent resealing or maintenance. Its neutral-cure formulation ensures compatibility with a wide range of building materials, giving it an edge in versatility.

Strengths and Advantages Over Competitors

Dow 795's superior adhesion and elongation properties make it an excellent choice for accommodating structural movements without compromising its bond. Its resistance to harsh environmental conditions, including UV radiation and extreme temperatures, surpasses that of many competing sealants. Dow 795's ease of application, compatibility with various substrates, and long-lasting performance give it a competitive advantage in the construction and industrial sectors.

Maintenance and Longevity

Tips for Maintaining Dow 795 Sealant

  • Regular inspection: Periodic visual inspections can help identify any signs of damage or deterioration.
  • Cleaning: Cleaning the sealed joints can remove dirt and debris that may affect performance.
  • Repairing damaged areas: Promptly addressing any damaged or worn sealant can extend its lifespan.
  • Follow manufacturer's guidelines: Adhering to Dow 795's recommended maintenance procedures ensures optimal performance.

Expected Longevity and Performance Over Time


When properly installed and maintained, Dow 795 is designed to provide long-term performance, often exceeding a decade or more. Its durability and resistance to environmental factors contribute to its extended lifespan. The sealant's ability to accommodate structural movements without cracking or losing adhesion further enhances its longevity.

In Closing

In conclusion, Dow 795 Structural Sealant offers unmatched performance for structural bonding needs. Its exceptional bonding strength, durability, and resistance to environmental challenges make it a top choice for construction and industrial applications. With Dow 795, you can trust in a reliable, long-lasting solution for your structural sealing and bonding requirements.