Metal burns on glass occur when a tradesman cuts steel or other metal and allows the sparks to bounce off the glass. Metal burn takes longer to restore than a typical scratched pane of glass, as the burns quite often are 4/1000" deep, and sometimes more. Metal is usually left within the burn. This makes the glass feel like it needs a shave. Resurfacing the glass is the technique we use. We have prformed metal burnt glass restoration for Publix Grocery Stores and several custom builders. Metal burn is easy to avoid. Just turn that saw around or protect the glass. Those cool looking sparks will cause a big mess with the glass surfaces.
Glass Restoration Inc. 2818 Grafton St. Sarasota FL 34231
HOW TO FIX SCRATCHED GLASS, CALL GLASS RESTORATION INC.