Lower Glass Stained

I would think Bon Ami would clean it off... Used it on hard water clouded shower glass.

0000 (4-zeros) steel wool will not scratch glass or chrome. However, if the glass is laminated, the discoloration can sometimes permeate between the glass layers (ie; safety glass) and can not be cleaned. This condition can be also be caused by placing rubber, silicone or certain plastics in close proximity. What happens over time is a chemical reaction takes place. A carbon black gas is created and given off and can permanently stain the surrounding material including glass. For an example, we would always tell our scuba students not to store a silicone dive mask together with rubber fins. Otherwise, in time, the mask itself will develop a smoky brown tint. This is the same type of reaction from the butyl rubber window sealant combined with the onboard plastics, vinyls, exposure to the elements etc. that can result in the conditions that you described. Maybe a mild abrasive like BonAmi, Bar Keepers Friend or even a mild acid solution might do the trick. -Just another long-winded thought. Bruce

X2 0n the 0000 steel wool for glass and chrome

I've also used CLR to get some of that haze off. Have even used it with the steel wool- donut outside with a mask though!

I picked up some 0000 steel wool and gave it a try. It took care of the light stains, but didn't touch the heavy build up at the edges of the glass. Here is a before shot, and after using the steel wool.





Since a lot of this would still show with the moldings installed I tried a razor blade and it did the trick. I went through a half dozen of them because they would dull quickly and begin to go over the stuff instead of scraping it off. Afterwards I went over it again with the steel wool and then glass cleaner. After about an hour and a half it could almost pass for a new piece of glass! Thanks for everyone's suggestions.