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Posted by EXT on October 3, 2006, 3:11 pm
The idea behind acid is that it won't harm the glass glazed surface of tiles
but will eat away at the mortar or grout to remove it from the surface. It
will eat some of the grout between the tiles, but you shouldn't use much
acid and it must be diluted with water to ensure that it is not too strong
and does damage to other things and surfaces.
ALWAYS add acid to water NEVER the other way round. The way it was explained
to me is: when adding acid to water, the first drop of acid to hit the water
will be immediately diluted along with the rest of the pour; if you do it
the other way round, the first drop of water that hits the concentrated acid
will immediately explode in steam, along with some of the rest of the pour
and this can hit your eyes, face, skin and other items nearby doing some
serious damage.
> michelle wrote:
>
>> I installed ceramic tile on my basement floor. I installed a light
>> colored textured tile and a light colored sanded grout. I thought all
>> the grout was cleaned from the tile so I sealed it. After the sealant
>> dried there were patches all over the tile of dried grout. It was a
>> mess! I searched on the internet for a way to remove the grout and the
>> sealant. All I kept seeing was to use muratic acid. Then I saw a post
>> from someone saying to use a cup of sugar dissolved in a gallon of warm
>> water. As weird as it sounded, I tried it. Everything came off the
>> tile and my floor looks like it was just installed when actually the
>> floor stayed looking terrible for over a year until I used the sugar
>> and the water. I poured the solution on the floor and let it sit for
>> about an hour then, using a nylon scrub pad, I scrubbed the floor. I
>> just want to say Thank You! to whoever posted this alternative to the
>> acid.
>>
> When hubby and I were shopping for tile, we overheard a woman asking about
> how to repair three rooms of newly installed tile she and her husband had
> just ruined with muriatic acid. Muriatic eats concrete and metal; it is
> not a "cleaner".
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