10 Best Cedar Deck Sealers 2026 in the United States

Ready Seal Exterior Wood Stain is an oil-based, semi-transparent sealer designed to protect outdoor wood surfaces like decks, fences, and siding. Its biggest advantage is the ease of application—thanks to a formula that doesn’t require back brushing, it goes on smoothly without streaks or runs. You can even apply it in direct sunlight or within a wide temperature range, making it flexible for different weather conditions.

The stain offers strong protection against UV rays and moisture, which helps prevent cracking, peeling, and damage from rain shortly after application. It also resists mold and mildew, helping keep your wood looking good longer. Coverage is solid, with one 5-gallon pail covering about 625 square feet, suitable for mid-to-large projects. Because it’s oil-based, it tends to be more durable than water-based options, though it may take longer to dry and has a stronger odor during application. The finish is flat, which might not give the glossy look some prefer, but it’s great for a natural wood appearance.

Customers appreciate its performance and durability, reflected in high ratings. This sealer is an excellent choice if you want a reliable, low-maintenance product that protects well in various conditions and requires minimal surface prep for reapplication. However, if you prefer quick drying times or less odor, you might want to consider water-based alternatives.

The Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer is an oil-based product designed specifically for wood surfaces. It stands out for its easy application process, requiring no primer, back brushing, or special temperature conditions for proper application. This 'goof-proof' application is ideal for users who may not have extensive experience with sealing decks, as it prevents laps, runs, and streaks.

Additionally, it can be applied using a sprayer, roller, or brush, adding to its versatility. The product offers strong UV resistance, which helps in protecting the wood from sun damage, enhancing the longevity of the finish. Water resistance is another key feature, providing a robust barrier against moisture, which can be critical for maintaining the integrity of a cedar deck.

However, it's worth noting that the true color of the sealer only becomes apparent approximately 14 days after application, which may require some patience. The sealer also cannot be applied over painted or newly stained surfaces, as they inhibit penetration. This may limit its use for some projects. This sealer is especially suitable for those seeking an easy-to-apply, UV and water-resistant product for cedar decks, provided they can accommodate its specific application requirements.

The Ready Seal 112 Stain and Sealer in Natural Cedar is a solid choice for protecting cedar decks and other exterior wood surfaces. Its oil-based formula offers strong UV protection and moisture resistance, helping prevent cracking, peeling, and damage from sun exposure and rain. It stands out by being quick-drying enough to handle rain within minutes and can be applied in a wide range of temperatures, which adds flexibility for outdoor projects.

The application is straightforward—no back brushing or sanding needed, and it works well with sprayers, rollers, or brushes, making it user-friendly even for beginners. Its low odor is an added comfort during use. While it provides mildew and mold resistance, this is typical for quality sealers rather than exceptional here. The finish is flat, so it won't add shine but will maintain a natural wood look.

One downside might be the oil-based nature, which usually means longer cleanup and a heavier feel compared to water-based options. Also, while it blends well and avoids streaking, some users might prefer more color variety. This product is a durable, reliable option best suited for homeowners wanting a hassle-free, long-lasting sealer that protects wood effectively without demanding complex prep or application techniques.