Centennial Seal is available in 1-quart concentrate containers at $91.65 per quart. Mixed with 2.5 gallons of water, each quart covers approximately 437.5 sqft as a single-coat system, working out to roughly $36.66 per finished gallon. The concentrate also doubles as an end-cut treatment for exterior siding installs when used undiluted, giving installers one product for both broad-surface application and end-grain protection.

Centennial Seal can still be pre-applied to your order at our facility, though that option may increase lead time depending on order size. For those who'd rather handle applications on-site, ordering by the quart gives you that flexibility.

Centennial Seal works for both interior and exterior use, though it's most valuable on wood surfaces where UV exposure and moisture are ongoing concerns.

Exterior Wood Siding: Direct sunlight and moisture are the two biggest threats to reclaimed wood siding over time. Centennial Seal creates a protective layer that slows UV degradation and keeps water from penetrating the wood surface.

Patio Wood Walls: Exterior wood walls on patios are still exposed to shifting seasonal conditions. Centennial Seal provides the UV and moisture protection needed to keep them looking their best year-round.

Bathrooms and Humid Interior Spaces: Guards against humidity without darkening the finish. Always spot-test before applying to verify compatibility with your finish color.

Accent Walls and Staircases: Helps maintain the wood surface in high-traffic spaces where moisture from cleaning or spills is possible.

Mix the Concentrate: Combine 1 quart of Centennial Seal with 2.5 gallons of clean water and stir thoroughly until fully blended.

Prepare Your Surface: Start with a clean, dry wood surface free of dust and debris. Do not use other sealants without spot-testing first, as many will darken the wood significantly.

Apply in Small Sections: A polyester brush, pad applicator, or airless sprayer with a variable tip all work well. Working in small sections helps ensure even coverage, especially on vertical surfaces.

Treat End-Cuts Separately: For exterior siding installs, apply undiluted concentrate directly to any cut ends exposed during installation to protect the more porous end-grain from moisture intrusion.

First Coat and Second Coat: Apply the first coat and allow it to penetrate fully. On dry or porous wood, a second coat is often recommended for long-lasting protection and the best results. Allow adequate dry time between coats.

Many wood sealers on the market use oil-based stains, linseed oil, or tung oil as a base. Those products work well on raw or unfinished wood, but they can significantly darken weathered reclaimed wood. Polyurethane finishes have the same problem, tending to film over the surface rather than penetrate it.

Centennial Seal uses nano-technology to penetrate the wood surface at the fiber level, creating a water-resistant and UV-protective barrier without the color shift most off-the-shelf products cause. For exterior use on siding, paneling, or any other exposed application, that means long-lasting protection without sacrificing the natural look of the wood. No glossy finish, no dark staining. Just clean, natural-looking results.

From large exterior wood siding installations to accent walls that need a refresh years down the road, Centennial Seal by the quart gives you the wood sealer and moisture barrier built for this wood. Order yours today or contact our team to discuss the right quantity for your project.