I have about half the bathroom shower wall tiles removed for a repair job.
I'm going to re-use them but need to get the old grout off. I soaked one
tile in a 10% muriatic acid solution as a test and the grout came right off.
The tile didn't look damaged, but will doing this cause any problems down
the road. I mean will it cause adhesion problems when putting them back up.
I'll be using a pre-mixed mastic.

Thanks for any tips.

workinprogress wrote:
I have about half the bathroom shower wall tiles removed for a repair
job. I'm going to re-use them but need to get the old grout off. I
soaked one tile in a 10% muriatic acid solution as a test and the
grout came right off. The tile didn't look damaged, but will doing
this cause any problems down the road. I mean will it cause adhesion
problems when putting them back up. I'll be using a pre-mixed mastic.

No. Make sure the acid has been neutralized/washed off though.

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dadiOH
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Get it at http://mysite.verizon.net/xico

"workinprogress" wrote in message
...
I have about half the bathroom shower wall tiles removed for a repair job.
I'm going to re-use them but need to get the old grout off. I soaked one
tile in a 10% muriatic acid solution as a test and the grout came right
off.
The tile didn't look damaged, but will doing this cause any problems down
the road. I mean will it cause adhesion problems when putting them back
up.
I'll be using a pre-mixed mastic.

Thanks for any tips.

Rinse in a baking soda solution. This will neutralize any acid. Warren

On Mon, 21 Feb 2005 10:26:34 GMT, "workinprogress" wrote:

I have about half the bathroom shower wall tiles removed for a repair job.
I'm going to re-use them but need to get the old grout off. I soaked one
tile in a 10% muriatic acid solution as a test and the grout came right off.
The tile didn't look damaged, but will doing this cause any problems down
the road. I mean will it cause adhesion problems when putting them back up.
I'll be using a pre-mixed mastic.

Thanks for any tips.


Muriatic acid contains HCl, the strongest acid, and it will dissolve
unglazed tile. The trick is how much to dilute it and how long to
allow it to work. Rinse with plenty of water and neutralize with a
clear household ammonia rinse.

workinprogress wrote:
I have about half the bathroom shower wall tiles removed for a repair job.
I'm going to re-use them but need to get the old grout off. I soaked one
tile in a 10% muriatic acid solution as a test and the grout came right off.
The tile didn't look damaged, but will doing this cause any problems down
the road. I mean will it cause adhesion problems when putting them back up.
I'll be using a pre-mixed mastic.

Thanks for any tips.



Try plain water, then vinegar, first.

"Norminn" wrote in message
...


workinprogress wrote:
I have about half the bathroom shower wall tiles removed for a repair
job.
I'm going to re-use them but need to get the old grout off. I soaked one
tile in a 10% muriatic acid solution as a test and the grout came right
off.
The tile didn't look damaged, but will doing this cause any problems down
the road. I mean will it cause adhesion problems when putting them back
up.
I'll be using a pre-mixed mastic.

Thanks for any tips.



Try plain water, then vinegar, first.

Not vinegar. you need a base not another acid.

Charlie

Thanks for the info everyone.