10 Best Ipe Deck Sealers 2025 in the United States

The Ready Seal 515 5-Gallon Pail Pecan Exterior Wood Stain and Sealer is an oil-based sealer designed for wood surfaces. It’s highly user-friendly, allowing application with a sprayer, roller, or brush without the need for back brushing, thinning, or diluting. This makes it particularly easy to apply, even for beginners, as it is labeled as 'Goof Proof.' The sealer offers solid UV protection and is resistant to mold, mildew, and rain, enhancing the wood's durability and longevity.

The sealer provides a flat look and reaches its true color approximately 14 days after application. However, it should not be applied over painted or newly stained surfaces as this can inhibit proper penetration. One of the standout features is its ability to blend itself without leaving runs, laps, or streaks, which contributes to its smooth finish. Durability is a key strength, thanks to its resistance to various weather conditions.

On the downside, it’s darkest when first applied, which could be misleading during initial application, and it may take up to two weeks to see the final color. Additionally, while its ease of application is a plus, the necessity of no prior surface painting or staining can be a limitation for some projects. With a coverage of approximately 625 square feet per 5-gallon pail, it offers good value for large surfaces.

The SEAL-ONCE Marine Ready Mix is a water-based wood sealer designed especially for high-moisture outdoor areas such as docks, decks, and piers. It offers strong water resistance by penetrating wood fibers and creating a flexible, breathable barrier that helps protect against constant moisture—a key need for wood exposed near water. It also provides UV protection with a stable coating that guards against sun damage and saltwater spray, which is important for maintaining the wood's natural look over time.

This product combines sealing, staining, and finishing into one step, making it easier to apply and clean up with just soap and water. Because it’s ultra-low VOC and safe for aquatic environments, it’s a good choice if you want an eco-friendlier option that won’t harm plants, pets, or people. While it enhances wood protection and appearance, the finish is generally natural-looking rather than glossy or highly decorative. If you want a very shiny or colored finish, this might not meet that preference.

Also, since it’s a penetrating sealer, it won’t create a thick surface film, which some users expect for extra durability against heavy wear. This product is ideal for those who prioritize strong water resistance, UV defense, and easy application, especially for wood near water, but may be less suitable if you need a high-gloss or thick surface coating.

The Seal-Once Marine Premium Wood Sealer is designed specifically for outdoor wood surfaces exposed to harsh conditions like docks, decks, and waterfront structures. It stands out for its strong waterproof qualities, creating a protective barrier that penetrates deeply into the wood fibers to help prevent water damage. This sealer also offers UV protection, which helps reduce the fading and wear caused by sun exposure, making it a good choice for preserving natural wood color over time.

The finish is clear and flexible, maintaining the wood's natural look rather than covering it with a heavy film. Application is user-friendly: it’s water-based, fast-drying, and can be cleaned up easily with soap and water, which is helpful for DIY projects. Additionally, it’s marine-safe and non-toxic to plants and animals, an important consideration for environments near water.

Because it is a penetrating sealer rather than a thick surface coat, it may require reapplication more frequently than some heavy-duty sealers to maintain protection over several years. Also, while it’s effective for wood specifically, it’s not suitable for other materials. If you need a sealer that combines waterproofing and UV protection with an easy setup and an eco-friendly formula, this product fits well. For those seeking a very glossy or thick finish or a product for non-wood surfaces, other options might be more suitable.