You really can&#39;t restain an acid stain since the acid has already reacted with the lime in the concrete. The best thing to do is remove the existing sealer ( either grinding or chemically ) and use a water color stain on it. Go to <a target="_top" href="http://www.smithpaints.com">www.smithpaints.com</a> or <a target="_top" href="http://www.engraveacrete.com">www.engraveacrete.com</a>. They both have good water color stains. You can also use an acetone stain but just watch that you don&#39;t pull the stain up when you apply the sealer.<br>
<br><div class="gmail_quote">On Mon, Dec 27, 2010 at 10:09 AM,  <span dir="ltr">&lt;<a target="_top" href="mailto:info@restoreyourtiles.com">info@restoreyourtiles.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
happy holidays to everyone.<br>
I was asked by one of my commercial (restaurant) customers to clean and to re-stain concrete inside patio. They specified acid stain and a sealer. I have never done acid staining before. Is this something that I can done myself or need to hire concrete refinishing contractor?<br>

I am very handy and the concrete is brushed finish. Can somebody explain to me how is acid staining done and what should I be aware of. should I also strip previous stain?<br>
Adam Bartos<br>
BiO Tile<br>
Sent via BlackBerry from T-Mobile<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>Walter Nartowicz<br>Mid Atlantic Stone Solutions<br><a target="_top" href="http://www.midatlanticstonesolutions.com">www.midatlanticstonesolutions.com</a><br>4607 Fayetteville Road<br>
Raleigh, NC 27603<br>919-772-2155 (Main Office)<br>