4 Must-Try Silicone Coating Products of 2023: Features, Costs & Benefits

Posted on July 20, 2023

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4 Must-Try Silicone Coating Products of 2023: Features, Costs & Benefits

Welcome to the ultimate guide to the top four silicone coating products of 2023! If you want to enhance your roof’s protection and waterproofing capabilities, you’ve come to the right place. This comprehensive overview will dive into the must-try silicone coating products that have captured the industry’s attention this year. Discover their remarkable features, cost, and the numerous benefits they offer for superb roof protection and waterproofing. Whether you’re a homeowner or a roofing professional, this guide will help you with the knowledge to make informed decisions and achieve outstanding results. Get ready to explore the exciting world of silicone coatings and unlock the potential for long-lasting roof performance.

šŸ‘‰ Top 4 Silicone Coating Products of 2023

#1 HenryĀ® 887 Tropi-CoolĀ® 100% Silicone White Roof Coating

Designed to shield various types of roofs, Henry 887 Tropi-Cool 100% Silicone White Roof Coating is a high-quality, moisture-cure coating. It is a premium solution that effectively reflects the sun’s heat and UV rays, ensuring optimal protection.

Features: The product is resistant to algae and mildew growth, ensuring a clean surface. It also can withstand extreme heat and wind, has high reflectivity, and is certified as a cool roof. It doubles as an ice and water shield, offers impact resistance, dries quickly, and provides waterproof protection.

Cost – According to Home Depot, the average cost for this product is $369.00.

Benefits – 

  • 100% waterproof with a lifetime limited warranty
  • Dirt pick-up resistance (DPR) technology
  • Highly reflective and promotes energy savings
  • Rainā€safe in 15 minutes with only one coat 
  • Can be applied in temperatures ranging from 35Ā°F to 120Ā°F 
  • Resistant to leaks caused by ponding water
  • Superior UV resistance and durability against weathering 
  • VOC compliant
  • Mold and mildew resistant
  • Chemically bonds with roofing materials
  • Easy application
  • Excellent adhesion and flexibility

#2 GardnerĀ® 100% Silicone Flat Roof Coat-n-SealĀ 

As its name suggests, Gardner 100% Silicone Flat Roof Coat-n-Seal is a 100% silicone-based flat roof coating that has been expertly formulated to effectively restore and waterproof deteriorated roof surfaces. It is an excellent solution for both commercial and residential roofs with flat or low slopes. This product is highly suitable for a wide range of roof types, including built-up roofs, EPDM, TPO, concrete roofs, parapet walls, and foam roofs. Its application is hassle-free and efficient, providing quick results. Additionally, it offers exceptional waterproofing capabilities, ensuring a long-lasting and permanent seal for the entire lifespan of the roof. The rubberized finish of the coating also expands and contracts, effectively resisting cracks and reducing the impact of thermal shock.

Features: The 100% silicone roof coating stands out due to its composition of pure silicone resins, making it exceptionally sturdy and capable of withstanding various weather conditions. Its user-friendly application process makes it suitable for both professionals and do-it-yourself enthusiasts. Moreover, the product provides additional peace of mind with a 10-year warranty, ensuring long-lasting protection for your roof.

Cost – According to Home Depot, the average cost for a 4.75-gallon of Gardner 100% Silicone Flat Roof Coat-n-Seal, is $329.00.Ā 

Benefits –  

  • 100% silicone, meaning that it was made with pure silicone resins, which makes it extremely durable and resistant to the elements
  • Easy to apply, and can be either applied by a professional or a DIYer
  • Backed by a 10-year warranty so you have peace of mind knowing that your roof is protected
  • Protects from the elements, such as UV rays, water, and chemicals
  • Extends the life of your roof so you’ll save money on repairs and replacements
  • Cool roof certified and makes your roof more energy-efficient by reflecting heat to keep your building cooler in the summer
  • Improves curb appeal and gives your roof a new look 

#3 GacoFlex S42

Revitalize your worn-out roof with GacoFlex S42, a 100% silicone roof coating solution. This highly adhesive coating can be applied over any existing roofing material, creating a seamless and durable membrane that safeguards against permanent ponding water, UV rays, and extreme weather conditions.

GacoFlex S42 offers superior coverage, allowing you to cover more surface area with less material than other competing silicones. It provides excellent holding power on granulated surfaces, ensuring exceptional results. This product also works well without a primer and maintains a strong adhesion to multiple surface types.

Features – GacoFlex S42 is a solvent-based roof coating containing VOCs. It has low viscosity, facilitating easy application, but precise application is necessary. The coating cures quickly, allowing for recoating or foot traffic in a short time, so prompt application is essential. It is not recommended for unclean, wet, or debris-laden surfaces, and requires a clean and dry surface to be applied. Specialized equipment like sprayers or rollers are necessary for proper application, adding complexity and cost compared to other coatings.

Cost – The average cost of this product at Walmart is $479.99.

Benefits – 

  • Improved adhesion without the need for a primer on most substrates
  • Excellent coverage with more surface area covered using less material
  • Offers effective coverage on uneven surfaces
  • A 100% silicone, single-component, elastomeric coating
  • Can withstand ponding water, preventing water damage and leaks

#4 GacoFlex SF4200 SeamSeal

Seal seams, fasteners, and other roofing features effortlessly with GacoFlex SF4200 SeamSeal. This silicone-based sealant includes a reinforcing agent that adheres to seams, fasteners, and roof details in just one coat. This silicone coating can transform any roof, regardless of seams or gaps, into a smooth, and completely sealed, surface.Ā 

With its versatile application methods, including brush, trowel, piping bag, or roller, GacoFlex SeamSeal simplifies the process of sealing seams, fasteners, and roofing gaps. GacoFlex SeamSeal serves as a waterproof alternative to traditional tape when preparing a roof for repairs and coating. It can also act as a caulk substitute for various surfaces.

Features – GacoFlex SF4200 SeamSeal is not only a silicone coating, it can also be used as a substitute for caulk in certain situations. It can withstand permanent ponding water, preventing issues such as roof softening, bubbling, or degradation. Due to its ease of application, it can also be applied as a DIY project and does not necessarily require professional installation. 

Cost – According to Spectrum Paint Center, the average cost of this product is $475.19.

Benefits – 

  • Transforms existing surfaces regardless of roof shape
  • Single application for easy sealing of seams, fasteners, and roof details
  • A waterproof alternative to traditional tape for roof preparation and repairs
  • Can replace caulk on various surfaces


If you are in the market for one of the top silicone coatings of 2023, any of these must-try products are designed to enhance the longevity and performance of your roof, ensuring optimal protection. When it comes to roof coatings, OConnor Contracting is your trusted partner. We understand the importance of selecting the right silicone coatings for your roofing needs. We specialize in providing high-quality roofing solutions in Buffalo, NY, and the surrounding area, including top-of-the-line silicone coatings. For more information and to discuss your specific requirements, please contact us at (716) 600-7663. Trust OConnor Contracting to deliver reliable, durable, and cost-effective solutions that elevate the protection of your roof.

Remember to consider your specific roof requirements and consult professionals for personalized advice when choosing the right silicone coating product for your project.


A. Enhanced adhesion, excellent coverage, and outstanding peak hide.

  • Waterproof properties and resistance to ponding water.
  • Durable and flexible composition for long-lasting protection.
  • A. They provide a seamless and protective membrane for roofs-

  • Reflect UV rays and heat, reducing energy costs.
  • Resist mold, mildew, and other weather-related damage.
  • Extend the life of the roof by taking care of leaks and deterioration.
  • A. Yes, these products offer excellent coverage, reducing material costs. Their durability and longevity save on future repairs and replacements, and they contribute to energy savings, lowering utility expenses over time.

    A. Yes, these coatings can be applied to various roof substrates, but it is important to double-check the compatibility of the product you choose and your roofing materials. However, it is important to ensure clean, dry, and suitable surfaces for optimal adhesion and performance.

    A. Visit the manufacturing websites of the listed products, or consult with reputable roofing contractors. Local suppliers may be able to provide additional details on availability, pricing, and technical specifications.

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