The first step in cleaning an oil painting is to remove the painting from its frame. Make sure the frame is on a soft surface to avoid damage. When the frame is off, use a vacuum to clean the cracks where the painting meets the wooden stretcher. Be careful not to cut the color.
The next step is to remove mold. Use a cotton ball and a Sodium Hydrochloride cleaner, gently soak the affected spot on the painting. Before continuing, check the cotton ball to ensure that the color does not come off. When the area is cleaned, immediately wipe the cleaned area with a wet sponge. Be sure to remove all detergent.
To clean a small amount of dirt and dirt, use an onion cut in half. The power can be increased by adding drops of lemon. Do not allow the lemon mixture to dry on the painting. Wipe with a wet sponge. If the dirt is still on, move up to cleaning with a lemon detergent. A soft sponge should be used with warm water. Use as little water as possible. After cleaning, wipe off any detergent.
For a higher degree of dirt and dirt use sodium carbonate. The concentration must be determined before the solution is applied to the entire fabric. The way to do this is to dissolve a small amount of sodium carbonate in hot water, then try mixing on a corner of the pain with a cotton ball. Continue this process until the mixture removes dirt without removing the paint. After cleaning, rinse the sodium carbonate with fresh water or leave white lines.
If the painting is so dirty, the above methods do not work, the next step is to remove the paint. What is needed to remove the paint is methylated spirits, turpentine diluted with linseed oil and several cotton balls. Use the cotton ball covered in methylated spirits to remove the paint. It is important not to go deep, remove only the paint and not the paint below. The method used to protect the paint underneath is after the paint has been removed, use a new cotton beam covered with the oil mixture for turpentine oil to stop the methylated spirits. Continuously check the cotton ball to ensure that the color does not come off. If paint begins to quit, use turpentine linseed oil blend to stop it.
After cleaning the painting, it is necessary to embrace the painting. The color can be glossy or matt and should be applied in a cross-band pattern with a varnish brush. Let dry.