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Re: Stain on driveway

#1
From: John M. Peterson
Date: Tue, 25 Aug 1992 20:43
24 lines
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>
>Since it's concrete, try some mineral spirits (this will disolve alphalt,
>but concrete's ok. Pour a little on and then dry it with a paper towel
>or cotton.
>
>If that doesn't do it, use muriatic acid cut about 20 to 1 with water.
>You can usually find this at home improvement stores sold as (are you
>ready for this?) concrete cleaner.
>

NO NO !! muriatic acid at that strength will etch --- desolve the
concrete, leaving you with sand and gravel (if you use too much).
It is also vary dangerous stuff to use.

The mineral spirits WILL work.


+------------------------------------------------------------------------+
|  peterson@headcheese.daa.uc.edu      	 In real life: John M. Peterson  |
|                                                                        |
|  College of Design Architecture Art & Planning                         |
|  University of Cincinnati           45221-0016           513-556-1207  |
+------------------------------------------------------------------------+
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From: peterson@ucunix.san.uc.edu (John M. Peterson)
Subject: Re: Stain on driveway
Message-ID: <1992Aug25.204300.8448@ucunix.san.uc.edu>
Organization: University of Cincinnati
Date: Tue, 25 Aug 92 20:43:00 GMT
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