Add equal parts of washing soda, flour and boiling water to a bucket. Use a wooden paint stirrer to thoroughly combine the ingredients. You can find washing soda in the laundry aisle of your grocery store.
Put on rubber gloves and use an old paintbrush to apply the paint remover. Allow the remover to stand for at least 30 minutes to work on the paint.
Scrub the painted item with a stiff-bristled brush to remove the paint remover and the loosened paint.
Wipe the piece down with a mixture of equal parts white vinegar and water on a towel or rag. The vinegar helps neutralize the acidic properties of the washing soda.