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Posted by Just Joshin on June 7, 2007, 10:02 pm
On Thu, 07 Jun 2007 11:06:59 -0700, seversont@comcast.net wrote:
>On Tuesday afternoon/evening I grouted the new 20X20 porcelain tile
>that was laid on my mother's basement floor almost a week earlier. I
>have "most" of the tile clean using sponges/water and then terrycloth
>towels. I am having trouble getting the grout out of the several
>little pits in the porcelain tile. I have tried vinegar with no
>results. I tried vinegar and a nylon bristle brush with no results.
>
>The only thing that has worked so far has been a steel brush. I have
>not seen any damage on the porcelain using the steel brush but I am
>worried I will scratch the porcelain. I have read about using wood
>dowels to remove grout from pits on porcelain which makes a steel
>brush seem extremely harsh to use on the porcelain.
>
>Can I continue to use the steel brush or should I try Sulfamic acid?
>
>I purchased some Sulfamic acid at Home Depot and the directions said
>let the cement cure for 10 days. I left the Sulfamic acid container at
>my mother's house and I don't remember if the word was "cement" or
>"grout." I worried about using the Sulfamic acid and its affect on the
>grout lines I want to keep while I was removing the grout from the
>porcelain pits.
>
>How long should I wait to apply the Sulfamic acid?
>
>How much should I dilute the acid at first and can I use a stronger
>mixture if my initial efforts still do not work? How much stronger?
>
>What type of brush/sponge/pad/etc should I use with Sulfamic acid?
>
>I have previously read when using any acid, have ventilation and eye
>protection,
>and rubber gloves if you have sensitive skin.
>
>Any recommendations or suggestions are appreciated.
>Terry
Now I would have tried vinegar because to me it wouldn't seem harmful.
However, after my failed attempt, I would call a tiling store. They
might have a simple solution, you haven't thought of.
tom @ www.Consolidated-Loans.info
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