EXTRA BOND - Sweet Pickins Milk Paint
If you're painting a previously painted or finished surface with Sweet Pickins Milk Paint, it's recommended that you use Extra Bond to improve paint adhesion to the painted surface. Extra Bond is also great to use for surfaces such as glass, baked enamel, primed metal, laminate, oil or latex paint, varnished, shellacked or polyurethane surfaces and many plastics.
This product is environmentally safe, simple to use and very easy to clean up with water and soap.
Full instructions are on the bottle.