10 Best Sealer For Cedar 2025 in the United States

Seal-Once Marine Premium Wood Sealer is designed specifically for outdoor wood protection, making it a solid choice for sealing cedar, especially in harsh environments like near water. It acts as a sealer, stain, and finish combined, which simplifies the process by reducing the number of products you need. The water-based, polyurethane formula offers strong waterproofing and UV resistance, helping to preserve the natural bronze cedar color and prevent damage from sun, moisture, and saltwater spray.

This sealer penetrates deep into the wood fibers, creating a flexible, breathable barrier that can last up to 10 years on vertical surfaces and 6 years on horizontal ones, which speaks to its durability. Its natural satin finish keeps wood looking attractive without a heavy or glossy appearance. Another plus is its easy cleanup with just soap and water, along with being safe for pets and plants, which is great if you want an eco-friendly option.

The product comes in a large 5-gallon size that might be bulky or more than needed for small projects, and the weight (over 44 pounds) could make handling a bit challenging. This sealer is well-suited for outdoor cedar furniture, decks, and similar uses where long-lasting protection against weather and water is important, especially in marine or high-moisture settings.

The Ready Seal 512 is a 5-gallon natural cedar exterior stain and sealer that stands out for its user-friendly features, making it an excellent choice for those looking to protect their wood surfaces. One of its primary strengths is the ease of application; it requires no primer and doesn't need back brushing, which minimizes the hassle during the application process. It can be applied using a sprayer, roller, or brush, and is designed to blend seamlessly without leaving runs or streaks. This 'goof proof' application method is particularly appealing for DIY enthusiasts or anyone new to wood sealing.

Another advantage is its strong UV protection and water resistance, which are crucial for maintaining the integrity of cedar wood in outdoor conditions. The oil-based formula offers durability, allowing the finish to withstand various weather conditions over time.

The Ready Seal 512 is a solid choice for anyone looking to protect cedar wood with ease and durability. Its user-friendly nature and effective protection make it suitable for homeowners and DIYers alike.

The Armstrong-Clark Armstrong Clark Deck and Wood Stain in Cedar Semi-Transparent is an oil-based sealer designed for exterior wood surfaces. It is specifically formulated to condition and rejuvenate wood without causing peeling, cracking, or sticky residues. This makes it particularly durable and user-friendly.

The stain can be applied in direct sunlight and withstands rain one hour after absorption, simplifying the application process and reducing weather-related delays. Its coverage is quite extensive, ranging from 150 to 400 sq ft per gallon, depending on the type of wood and whether it's horizontal or vertical. This broad coverage makes it cost-effective for large projects.

The semi-transparent finish means the final color may vary significantly based on wood type and condition. This variability can be a downside for users seeking a consistent appearance. In summary, this stain is an excellent choice for those looking to rejuvenate and protect their wood surfaces with minimal hassle.