10 Best Deck Sealers 2025 in the United States

The Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer is a solid choice for those looking to protect and enhance the appearance of wooden surfaces. One of its standout strengths is its ease of application; there's no need for priming or back brushing, which simplifies the process for users. This 'goof-proof' product is designed to blend seamlessly without leaving laps or streaks, making it friendly for both novice and experienced users. Additionally, it can be applied in a wide temperature range, ensuring flexibility in usage conditions.

In terms of protection, this sealer offers good water resistance, UV resistance, and mildew and mold resistance, which are essential for exterior wood products. The natural cedar finish enhances the wood’s appearance while providing necessary protection against the elements. The drying time is reasonable, allowing users to get back to enjoying their outdoor spaces relatively quickly.

There are some considerations to keep in mind. The sealer is oil-based, which may not be suitable for everyone, especially those preferring eco-friendlier options. Moreover, it requires careful surface preparation; it should not be applied over painted or previously stained surfaces, as this could lead to adhesion issues. Also, the color may appear darker initially, taking up to 14 days to reach its final shade, which might not meet everyone's expectations right away.

The Ready Seal 545 Exterior Stain and Sealer is an oil-based product designed for wood surfaces, available in a 5-gallon container with a Burnt Hickory finish. Its ease of application is a key strength, requiring no primer or back brushing. It can be applied using a sprayer, roller, or brush without causing runs, laps, or streaks, making it user-friendly for those with little experience in applying sealers.

The product does not require diluting or thinning prior to application, saving time and effort. It is designed to blend itself without needing a wet-line application and can be applied under any temperature conditions, adding to its flexibility and convenience. This sealer is also noted for its coverage and the natural finish it provides over wood surfaces.

It takes approximately 14 days to reach its true color, so some patience is required. It's important not to apply it over painted or newly stained surfaces, as sealed surfaces will inhibit penetration. The product has good customer reviews, with a 4.5 out of 5-star rating, indicating general satisfaction among users. Those looking for a straightforward, easy-to-apply deck sealer that provides a natural look to wood surfaces may find this product suitable.

The Ready Seal 120 Redwood Exterior Stain and Sealer is a convenient choice for wood decks thanks to its easy application and good protective features. It doesn’t require a primer or back brushing, which makes applying it less of a hassle, and you can use a sprayer, roller, or brush. One nice feature is that it dries without runs, streaks, or lap marks, even if applied at different temperatures.

The sealer is oil-based and offers UV resistance plus mildew and mold protection, helping to keep your wood looking good and protected against sun damage and moisture-related issues. It also seals well to prevent water from penetrating, which is key for durability. The finish is flat with a rich redwood color that starts dark but settles into its true shade over about two weeks. Coverage is decent at around 125 square feet per gallon, which is typical for sealers in this category.

Ready Seal shouldn't be used over painted or recently stained surfaces because it prevents further penetration. While the product is quite durable, the drying time before the color settles is a bit long compared to some other sealers. This product is ideal for homeowners looking for a straightforward, reliable sealer that simplifies the application process and provides solid protection against UV rays and mildew, making it suitable for exterior wood decks exposed to the elements. If you want a no-fuss sealer that balances ease of use with effective protection, this product fits well.