Hard Waater Deposits on Windows

[openwater]

Has anyone had luck removing old, hard water deposits from windows? Tried a few window cleaning products then CLR on a clean rag with no luck...

Thanks

[wingless]

My practice is to use powdered Ajax or Bon Ami on the exterior glass. I wet the surface sprinkle some on, then work the glass clean, using my hand as an applicator. I have used this for years attaining the desired results.

Be aware that the glass may be etched. Glass corrodes, like metal. This usually happens on horizontal glass, from standing water.

[mrmickeymouse]

Vinegar will do wonders on all windows, house, car, etc.

It is somewhat acetic and will dissolve water spots, try it in your bathroom inner shower door first, it should make it bright and shiny.

Scott

[insite]

I know this was an old post, but we always use steel wool.

[mrmickeymouse]

Wow!!!!

No massive scratches.

Scott - I will stick with vinegar.

[insite]

it doesn't scratch at all.

[Greg]

I have used 0000 steel wool lubricated with Sprayway glass cleaner on the outside surface of the front window in my 2001 996 and 2001 Honda Odyssey. I applied very slight pressure on the steel wool. It worked great, no scratches. I had minimal hard water deposits to begin with. I assume there was no etching. When finished, the glass was cleaner than ever. Some of the pinpoint defects in the glass that I thought were pits from sand were actually contaminants adherent to the surface and were removed.