Earthborn’s Isolating Primer is designed to treat stubborn, dry stains before over painting with water based paints such as Earthborn Claypaint or Earthborn Lifestyle Emulsion. It is a matt white paint that contains a stain inhibitor, and is ideal for treating stains including crayon, graffiti, water stains, creosote, smoke stains, hand marks, asphalt etc. helping to prevent them from bleeding through the new paintwork.