More than you ever wanted to know about Bon-Ami (Was RainX, etc.

[Kelvin]

Huw Powell commented...

>Another note, I think BonAmi has some bleach (chlorine) in it as well.
No, that's one of its saving graces. It contains the aforementioned 
feldspar, finely powdered, and calcite (calcium carbonate). It does not 
contain the silica (quartz sand) found in almost all other abrasive 
cleansers. I've never used it on window glass, car or home, but I have 
used it in kitchen utensils, including borosilicate glass (most widely 
known under the trademark name Pyrex) with no ill effects. 

     But I'd not recommend it's being used on one's windshield. Feldspar 
is just hard enough to scratch windshield glass, although some list 
subscribers have apparently used it on their windshields with no ill 
effect. Greg Wolters's observation that the can he saw in a store 
yesterday bore a caution that Bon-Ami not be used on mirrors or glass is 
new. The can we have, which is admittedly several years old, says nothing 
of the kind and, in fact, claims Bon-Ami is recommended by Corning Ware, 
Pyrex Ware, Rival, Amana, Cuisinart, and a few other manufacturers of 
kitchen ware and ceramic tiles as a cleaning agent for their products. 
You figure out what all that means.

Kelvin Kean