Removing a bleach stain from light-colored wood can be challenging, as bleach can cause permanent discoloration. However, you can try the following methods to minimize the appearance of the stain:
Diluted bleach method: Prepare a solution of 50% water and 50% bleach. Lightly dampen a clean cloth with the diluted bleach solution and gently rub the stained area, following the grain of the wood. Be cautious and test the solution on an inconspicuous area first to ensure it doesn't cause further damage. Rinse the area with water and dry thoroughly.
Lemon juice and sunlight method: Squeeze fresh lemon juice onto the bleach stain and expose it to direct sunlight. Allow the sun's natural bleaching properties to lighten the stain. Keep an eye on the progress and reapply lemon juice as needed. Be aware that prolonged exposure to sunlight can also cause the surrounding wood to lighten, creating an uneven appearance.
Wood stain or marker method: If the bleach stain persists, you can try using a wood stain or marker that matches the color of your light grey wood. Apply a small amount of stain or marker to the stained area, following the wood grain, and blend it in carefully. Allow it to dry completely, and if necessary, repeat the process until the color matches.
Professional restoration: If the above methods do not yield satisfactory results, or if the wood is valuable or delicate, it may be best to consult a professional wood restorer. They have the expertise and tools to assess the damage and potentially refinish or repair the affected area.
Remember, the effectiveness of these methods may vary depending on the type of wood and the severity of the bleach stain. It's crucial to test any cleaning or restoration solution on a small, inconspicuous area first to ensure it doesn't cause further damage or discoloration.