A decorative glass and ceramic painting system to use in conjunction with Jo Sonja’s Artist’s Colours. Prepares surface for increased adhesion of paint. Part A of a two-part system. The addition of Jo Sonja’s Glass & Tile Medium (Part B) will transform Jo Sonja’s Artist’s Colours into glass & tile paint. Glass & Tile Primer (Part A) provides a thin, transparent bonding film which is required to increase adhesion of the paint to the surface