Sandblasting

14 Tropical Colors - Add Intricate Designs to Your Glass! Glassline chalks may be used to draw on etched and sandblasted glass surfaces for a dimensional look. Layer different Glassline chalks for a blend of colors. Colors blend well and can easily be used to attain a shaded look. Try combining Glassline pens and chalks in one piece -- a charcoal-like drawing may be done with the chalks and then outlined or accented with the pen. Chalks are compatible with 90 COE, System 96 glass and