Use a fine tipped brush for outlining and highlighting. Dip small amounts out of bottles and apply sparingly. Fire Metallics and Lusters between 1200 and 1350 deg. F. Most metallics will become black during the firing process before turning shiny. If gold is overfired, hairline cracks may appear.
White spots indicate moisture on the glass before decorating.
Be sure glass is free from oils and creams of any kind. The oil in hand cremes can act as a resist. With these few precautions, you can produce a brilliant piece. The rich, vibrant colors of fusemaster paints rival the brilliance and intensity of stained glass. When applied with Water Friendly Medium, clean up only requires water.