Re: Stain on driveway

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1 total messages Started by John M. Peterson Tue, 25 Aug 1992 20:43

Author: John M. Peterson
Date: Tue, 25 Aug 1992 20:43

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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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