Bon-Ami (Was RainX, etc.

[Larry C Leung]

Calcium Carbonate, shell material. Hardness about 3 on the Moh's scale.
Talc is 1 (it's NOT a linear scale). Basically, CaCO3 is in it's most raw
state in something like TUMs. It's significantly harder than talc, and
it's of about the same hardness as hard water stains (MgCO3 or CaCO3) so
it can polish them off without effecting the much harder glass (5.5)
unless the polishing rag has a rock stuck under it.....

LL - NY

On Tue, 17 Apr 2001 17:44:34 EDT MCTXR4 at aol.com writes:
>In a message dated 04/17/2001 5:14:57 PM Eastern Daylight Time, 
>l.leung at juno.com writes:
>
>>  HOPE it's NOT made from Feldspar. On the Moh's hardness scale, 
>it's
>>  rated 6.0 in all of it's varieties (potassium, calcium, sodium)
>>  [Spaulding and Namowitz, "Earth Science", D.C. Heath and Co.]. Most 
>glass
>>  (flint, crown) has a hardness of 5.5. Pyrex is a little harder at 
>6.0. I
>>  don't know what auto glass is, but it's likely to be close. So 
>either
>>  auto glass is say, 6.5, or Bon Ami (means Good Friend in French) 
>doesn't
>>  really have Feldspar. (Perhaps Flourite (4) or Apetite (5) or 
>something
>>  like that). 
>>  
>
>If I remember correctly, It's fine ground calcium-something-or-other 
>hence 
>their logo of a chick with it's (broken) shell. Has about the same 
>hardness 
>as talcum powder, but not as fine a grain.
>
>Mike Torio