To remove pencil marks from a painted wall, the newest technology uses peroxide and detergents to penetrate soiled areas. Simply spray a product such as Bio-OX Citrus Concentrate on the soiled area, allow it to penetrate for a few minutes, then wipe clean. Repeat if necessary. Be sure to try the solution in a hidden area first, to test for colorfastness. You could also try a solution of mild detergent and warm water, and use baking soda as a scrub if needed. Work in sections from the bottom up to prevent streaks. Let dry for a few minutes and wipe dry with a clean cloth. Another option to remove the pencil marks is to rub them gently with a pencil eraser.
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