Clean tough glass stains and built-up mineral deposits from shower doors and other glass surfaces using mild household abrasives and an ordinary power drill.
By the DIY experts of The Family Handyman Magazine:March 2005
Scrub away the toughest stains on glass with a buffing wheel and mild abrasive. When you’re working near the sash, protect it with masking tape.
Remove shower doors and lay them flat. Buff the glass with a car polisher and mild abrasive.
Window manufacturers recommend abrasive cleaners for the toughest glass stains. Apply a mild abrasive such as Soft Scrub, Bar Keepers Friend or Bon Ami to a soft rag and scrub. These products usually won’t scratch glass, but start in a small, inconspicuous spot just to make sure. If elbow grease alone won’t do the trick, or if you have large areas to cover, use a drill and small buffing wheel (Photo 1; sold at home centers). You can use a similar method on glass shower doors (Photo 2). An inexpensive electric buffer works fast on the large surface.
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
You'll need a buffing wheel for your drill or a car polisher for large surfaces.
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.
Mild abrasive cleaner