Protect Your Build with CUTEK® Extreme

With the right finish for lasting performance.

As outdoor projects ramp up, choosing the right wood finish is just as important as selecting the right materials. CUTEK® Extreme is an oil-based wood stabilizer designed to highlight the natural character of wood while helping protect it from moisture, splitting, and weathering. Whether you’re working on cladding, decking, or custom outdoor features, it’s a reliable option for long-term durability.

Built for Exposure

CUTEK® Extreme penetrates deep into the wood, stabilizing it from the inside out. It doesn’t form a surface film, so it won’t crack, peel, or flake over time. This makes it a good fit for high-exposure applications like siding, soffits, privacy walls, and pergolas. Left to weather, it develops a soft silver patina—or apply CUTEK® Colortones to maintain color longer.

Practical, Flexible, and Low Maintenance

This finish works with a wide range of wood types, including softwoods, hardwoods, and thermally modified species like Thermory. A single coat provides long-lasting protection, and maintenance is straightforward. Because it moves with the wood, it’s a smart choice for changing weather conditions and demanding job sites.

Prefinishing Available

To save time on site, Mason’s Mill & Lumber offers in-house prefinishing for many materials—including the option to apply CUTEK® Extreme. Our prefinishing service ensures a clean, consistent look and gives your materials added protection from day one.

Ready When You Are

We keep CUTEK® Extreme in stock and ready to ship. If you’re starting a new build or maintaining an existing one, our team can help you select the right finish and get it to your job site fast.

Contact us to get a quote or learn more about using CUTEK® Extreme on your next project.