Oak, pine, cherry and walnut are just a few types of trees that create structures, flooring, panelling and furniture. Walnut is a hard wood that is a popular choice for carving; walnut wood can last a lifetime if cared for properly. Unfortunately, any wood, including walnut, can develop difficult-to-remove stains. A variety of methods can successfully remove the stains and restore the look of your walnut wood.
Add two to three drops of a dry-cleaning solution that contains tetrachloride to the dark stain. Read all directions and warnings that are printed on the label.
Scrub the solution and stains with a stiff brush. Continue adding a few drops of the dry-cleaning solution to the dark stains and scrubbing until the dark spots are no longer visible.
Clean the solution off the walnut wood with a damp, soapy cloth. Wipe the area dry with a towel.
Fill a small bowl with equal parts olive oil and white vinegar. Dip the corner of a cloth in the mixture. Gently scrub the stains in the direction of the wood grain. Repeat the process until the white stains are no longer visible.
Pour 1/4 cup of baking soda into a bowl. Mix 1/2 cup of mayonnaise with the baking soda. Scrub the mixture into the white stains using a clean, damp cloth. After the stains are removed, wipe the walnut wood with a clean, damp cloth.
Apply a drop or two of non-gel toothpaste to a damp cloth. Gently rub the stains in a lunar motion with the toothpaste-dampened cloth. Wipe the walnut wood clean with a damp cloth.
Lay a white towel on the stains. Allow an iron to preheat for several minutes. Rub the preheated iron plate over the towel. Rub for several passes. Examine the progress of white stains. If they are still visible, lay the towel back on top of the stains and continue rubbing with the iron.
Use a piece of 000 steel wool to rub wood wax into the stain. Rub for several seconds until the stain is no longer visible. Continue with the remaining steps if the stains persist.
Rub a fine piece of sandpaper over the stain gently. Rub for just a few passes. Pour white spirit into a small dish.
Dip a 00 steel wool into the white spirit and rub the stains with the steel wool. Rub in the direction of the wood grain. Continue in this manner until the water stains are gone.
Stain the walnut wood to match the surrounding area. Allow the wood to dry. Apply wax and buff as you normally would.