The NEW Vitrea 160 Frosted Discovery Set is a boxed collection of 6 assorted frosted colours (20 ml bottles). This is everything that is needed to paint almost any nonporous surface that is desired. The set is perfect for gift giving or to begin the activity of glass painting, as it includes the 6 most popular colours. The selection of paints includes enough paint to complete a small number of handpainted pieces. Brilliant, intense colours for use on glass, crystal, china, porcelain, tile, metal, ceramic, and more. The colours are water based and non-toxic. They are intermixable and blendable with each other to achieve limitless tones. They are also completely removable until baked in a kitchen oven at 160C (325F) for 40 minutes. Once baked, the paint is permanent, microwave and dishwasher safe as well as UV and solvent resistant. Conforms to ASTM D-4236