Pentart's single component crackle varnish lends a touch of antique effect to any surface, like cracking paint. Use an acrylic paint on the surface to be decorated, once dry apply the crackle medium. Once the crackle medium has dried, paint the surface again with an acrylic paint of a different colour than the original layer. The second layer of paint applied with crack as it is drying, thanks to the crackle varnish. The base coat applied initially will peek through the resulting cracks. The pattern of cracks depends on the technique used to apply the paint layers.