A very simple Glass Painting Project by Alan Gear from Rainbow Glass (Alan and Barrys Crafts) The project uses Water-based “pipe and peel” type glass paints. Although this project is best done with Rainbow Glass Water-based paint, they can be substituted for others.  Any thick, pipe and peel types of water-based glass paints.Although Rainbow Glass has now stopped trading you can use the same technique with any of the thicker water-based paints, normally the peelable ones such as Marabu Fun and Fancy, Plaid Gallery Glass or Hobby Line Glas Design.The glass shapes used will stick just by being pushed into the wet paint. There is no need to use a separate adhesive.