Glassline pens are a lining and shading material for glass. They are easy to use and can be applied between multiple layers of glass or on the top surface for a complex dimensional look.Glassline Pen colors are compatible with most types of glass from float to 90 and 96 COE. Glassline colors are best fired to 1500F, but may be fired lower or higher depending upon desired results.
Glassline products are lead-free and food safe when fired.