Water based bitumen imitation to create an antique look and evidence cracks on any surface. Perfect for gilded surfaces. Daily ART bitumen is permanent and does not require finishing. However, if you want to, the surface decorated with Daily ART Bitumen can be covered with acrylic varnish after the Daily ART Bitumen is dry. Use a sponge or a foam brush to apply bitumen to the surface. If you put too much of Daily ART Bitumen and the surface looks too dark wipe off with a paper towel.