Water and wax based non-toxic product for creating an antique patina look on any porous surface. Is perfect for evidencing cracks. Apply by finger or with a dry cloth and let dry. Patina is removable with water during 30 minutes after application. When Patina dry it is water resistant, so you can apply water based varnish if you like. If you want to decorate glossy surface cover the surface with Black, White, or Brick primer or with Vintage Paint first.