Pour a small amount of hydrogen peroxide into a plastic container that you can throw away. Apply the peroxide to the stain with a paintbrush, and allow it to set overnight covered with a rag moistened with hydrogen peroxide. Remove the rag and allow the treated area to dry.
Then, how do you get black stains out of white wood?
Get those white marks—caused by hot cups or sweating glasses—off your coffee table or other wooden furniture by making a paste of 1 tablespoon baking soda and 1 teaspoon water. Gently rub the spot in a circular motion until it disappears. Remember not to use too much water to remove water stains from wood.
In this manner, what causes black stains on wood? These black marks are called Metallic Discoloration or Iron Stain and are caused by elemental iron reacting with phenolic chemicals in the wood to form black iron tannates (common black ink pigment). Iron Stain requires the presence of iron, wood and water and will not occur if one of these elements is absent.
Herein, how do you fix black water stains on wood?
For stubborn black water stains, you may need to use a commercial wood bleach.
- After removing the wood finish, apply mixed wood bleach with a brush to the wood.
- Allow the wood bleach to work for four hours.
- Neutralize the wood bleach by applying a mixture of two parts water and to one-part vinegar with a sponge.
