- 1). Remove the wax film with a solvent such as 70 percent rubbing alcohol. Apply the solvent to a cloth, and blot the wax. Wait 10 minutes. Blot again with the same cloth to try to transfer the film to the cloth. If the film remains, apply solvent to a second cloth. Place the cloth at the edge of the wax stain, press on the cloth/surface with medium pressure and wipe across the stain. Repeat with solvent and another cloth as needed. If the wax doesn't come off or the stain spreads, proceed to Step 2.
- 2). Heat the glass surface, and transfer the wax onto cloths or brown bag paper. Heat the glass in a microwave or with a hair dryer or steam iron set on "Low" and placed approximately 2 to 3 inches from the surface. Once the wax begins to melt, place a cloth or piece of brown paper bag on it. Wait 30 seconds, and lift the cloth or paper away. Repeat as needed. If the film doesn't come off completely or if you're dealing with a thick film, proceed to Step 3.
- 3). Freeze the glass and scrape away the wax film. Place the glass in a freezer for an hour or rub the wax-stained surface with ice until the wax freezes and becomes brittle. Scrape the wax away from flat glass with a plastic scraper. Scrape the wax away from non-flat glass such as jar or votive bottoms with a plastic spoon.
- 4). Wash the glass with hot, soapy water when finished to clean and/or remove any remaining residues. Rub the surface with a soapy cloth. If necessary, rub a glass-safe scrubbing pad across the surface to lift any remaining wax. Rinse with hot water, and dry thoroughly.
Source...