How To Seal Butcher Block Countertops With Natural Ingredients

Butcher block countertops are a durable and natural addition to the perfect rustic kitchen, but they require some specialized care. Without proper sealing, butcher blocks can stain easily and are prone to wear and tear. One of the best ways to keep your butcher block in pristine condition is by sealing it, and for those who want to keep things as natural as possible, tung oil is a fantastic option. It's a plant-based oil extracted from the seeds of the tung tree, making it an eco-friendly, non-toxic choice. Best of all, it offers great water resistance and a stunning finish without the use of harsh chemicals.

To get started, make sure your countertop is clean and dry. Sanding is also a key step. Lightly sand the surface with fine-grit sandpaper to ensure the wood is smooth and ready to absorb the oil. After sanding, wipe the surface with a damp cloth to remove any dust. It's crucial to work in a dust-free area to avoid imperfections in the finish. Next, pour a small amount of pure tung oil into a bowl, and using a clean cloth or sponge, apply a thin, even coat to the wood. Be sure to rub the oil in with the grain of the wood, as this will allow it to penetrate deeply into the fibers.

Allow the first coat to soak in for at least 10 minutes. After that, use a clean cloth to wipe off any excess oil. Don't rush. Letting the oil fully absorb into the wood is what creates the protective barrier. The countertop will feel a bit tacky at first, but resist the temptation to touch it too much as it dries, as it may take a few days.

If you find that the tung oil isn't penetrating into your butcher block effectively, then you may need to dilute it with a citrus solvent. Some options already come pre-mixed, such as the Real Milk Paint Half and Half, or you can purchase them separately and mix them yourself. 

For the best protection, you'll need to apply multiple coats of tung oil. After your first coat is dry, repeat the same process — adding the oil, waiting for absorption, and wiping off the excess — until you've applied about 2 to 5 coats. The more coats you apply, the more durable and water-resistant your countertop will be. You'll know it's time to stop when the wood stops absorbing oil and the surface looks glossy and smooth.

Once the final coat is dry, your butcher block countertop will be sealed and ready to use. People often wonder how often they should be sealing their butcher block countertops. As a general rule, you should reapply a fresh coat of tung oil every four months or so, depending on how heavily you use your countertop. Regular reapplication will keep your countertop protected from moisture, stains, and scratches while also bringing out the natural beauty of the wood.