I have a door glass that is stained to the point that I cannot clean it. Years ago my sump pump failed in my crawl space and left about 1/2" water standing. this piece of glass was sitting in it.

I have tried Windex, CLR, a fine 3M Polishing compound, turpentine, and a razor. Nothing has touched it.

A fellow I know in Chicago needs this glass, I'd love to let him have it, but don't want to waste the shipping costs if he can't use it.

Any ideas? Thanks, Joe.

Not sure it will help in this case but 000 (triple 0) steel wool can remove some stains from glass without scratching.

Help is on the way. Get on the internet and search for a product called Spot X. It is sold by a company out of Washington State and it is excellent. I had some windows with water spots and crud that would not come off with many of the products you mentioned. Simply mix it with water (its a powder)to a real thick paste and use their non-scratch pad to clean with. You can actually use a small vibrating hand sander with this pad and it will make the windows spotless. The directions list the sanders you can use. This is an excellent product. You can do a search here and find the web site, I did a post a couple of months ago under I don't do windows and a fellow PY'er posted their web site.

Hope this helps
Larry

Whoa hey,
0000 steel wool.

Or, if it is that crystalline white scale: Fishtank calcium scale remover. Vinegar comes to my mind, as it brightens 100yearold bottles.

HIS