Jo Sonja Medium Glass and tile Primer 250mL Part AUse with Jo Sonja’s Artist’s Colours. Part A of a two-part system. Surface preparation for increased adhesion of paint. Part A of Jo Sonja’s two-part Glass & Tile System. The addition of Jo Sonja’s Glass & Tile Medium (Part B) will transform Jo Sonja’s Artists’ Colours into glass & tile paint. Directions: Ensure surface is clean and dry. Use a soft dry brush to apply a generous coat of Glass & Tile Primer (Part A) to area to be decorated. Allow to air dry (approximately 5-10 minutes). Glass & Tile Primer provides a thin, transparent bonding film which is required to increase adhesion of the paint to the surface. Proceed with Part B of the system using Jo Sonja’s Glass & Tile Medium following label instructions. The use of Jo Sonja’s Artists’ Colours is recommended for best results. Adhesion and durability require adequate Glass & Tile Medium in contact with the surface. Any residue from the application of Glass & Tile Primer that is left on the surface after decorating may be buffed away using a soft cloth. When painting is complete, a minimum of 2 weeks cure time is necessary for maximum durability. Time varies depending on climate and humidity. Clean up with mild soap and cool water.