Glass cooktops, like the ones produced by GE, look attractive in residential and commercial kitchens, but unlike old-fashioned cast-iron appliances, the glass inserts are susceptible to cracking. A dropped spoon or scratch with a diamond ring can leave your smooth surface with a ding, scratch or chip. GE recommends complete replacement of cracked glass cook tops, but smaller areas of damage may be repaired as long as they aren't near or on the burners.
Remove Light Scratches
Mix 2 tablespoons of baking soda with 1 teaspoon of water in a small cup.
Dab up the pasty mix with a clean piece of cheesecloth. Rub the paste over the light scratches. Use small circles to get a good buffing motion.
Wipe away the paste with a clean, dry piece of cheesecloth. Do this regularly to keep scratching under control.
Wipe the chipped area clean with a cotton swab dipped in alcohol.
Place the glass chip upside down on a counter and carefully dab it with the alcohol swab. Do not touch the glass as this may cut you.
Allow the cooktop and the chip to dry completely, about 30 minutes. Squirt a dab of epoxy glue on the chipped surface of the stove.
Push the chip into place and hold it still with tweezers for one minute. Do not touch or use the stove for at least six hours. The glue must cure completely.