Diy Paint Remover For Wood . To kill black mold on wood, mix warm water and vinegar in equal proportions. Ensure that all the things in the pot are fit; How to Easily Remove Paint & Varnish from Old Furniture! Paint from www.pinterest.com To kill black mold on wood, mix warm water and vinegar in equal proportions. A good chemical paint stripper, options include: Leave it for 15 minutes or until the paint from the objects has been stripped.