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Old 04-21-2011, 12:00 PM   #1
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thinset or portland with latex?


after a great deal of effort to locate replacement tiles that match for a vertical application I am curious as how to paste the tile.

Should I use thinset with latex, or should I use portland cement with latex? I have all of those products in my garage but I feel more comfortable with portland that I do thinset because of my little to no tiling experience and I have hands on experience with portland.

Thank you for you advice
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Old 04-21-2011, 05:42 PM   #2
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thinset or portland with latex?


Thinset.
How old is it?
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Old 04-22-2011, 12:51 PM   #3
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thinset or portland with latex?


Is this your pool tile?

pool tile
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Old 05-03-2011, 10:08 AM   #4
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thinset or portland with latex?


yes this is for my pool tile (good eye). I am going to grout later today. I have thinset and I will be mixing it with a latex additive.

I don't know how old the tile is but the house was built in 1997 so at the most 14 years old. the tile that I bought to replace the old tiles to my surprise looks identical.

After I thinset, I am going to acid wash the pool and the tile so that all of the tiles are super clean before I grout on Thursday. I bought grout from a pool supply store that is supposed to have an epoxy in it and I will be regrouting the entire pool.

Do I have to seal the tile or grout after it is set or is that unnecessary? I know these are a lot of questions and I appreciate the feedback. Thanks for the replies.

Last edited by lendosky; 05-03-2011 at 10:12 AM.
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Old 05-04-2011, 05:44 PM   #5
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thinset or portland with latex?


Whoops....Let's back up for a minute.

Pool tile requires an extra strong thinset and in fact epoxy thinset would be better.

You don't want to mix any additives with just any thinset. Mixing additives with "modified" thinset could wreck the chemistry of the thinset and render it short-lived and basically useless.

If you are adding your own additives then you would want to use "unmodified" thinset and the additive recommended by that thinset manufacturer as being correct for the chemistry of that particular thinset. You can't just make up the rules as you go and expect satisfactory results.

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After I thinset, I am going to acid wash the pool and the tile so that all of the tiles are super clean before I grout on Thursday.
That isn't a very smart idea. I hope the pool company didn't tell you to do that. Thinset is vulnerable to acids and in fact it will also wick moisture. If acid is introduced to raw thinset who knows what effect it have on the adhesive qualities. Tile is also vulnerable to acid over time. I know I know, acid is used to clean pools all of the time. And decorative pool tiles are failing all of the time. Ever wonder why that is?

Two days is not near enough time for thinset to dry in preparation for an acid-wash. Thinset will easily dry in two days but it won't be cured for weeks.

If you were to grout first THEN acid wash, the thinset would be somewhat protected from the decaying effects the acid will have on it.

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I bought grout from a pool supply store that is supposed to have an epoxy in it...
That is just plain nuts. Epoxy is not an additive. Epoxy when mixed (resin and hardener) is a stand alone product of its own. I don't think things like grout can have epoxy it it. Why not use an epoxy grout and be safe. Where in the world are you getting your information? Are you just making this stuff up as you go?

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Do I have to seal the tile or grout after it is set or is that unnecessary?
You wouldn't have to seal epoxy grout - ever.
Portland grout can be sealed but tile sealers won't withstand the rigors of everyday pool life.
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Old 05-04-2011, 06:17 PM   #6
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thinset or portland with latex?


I contacted mapei yesterday and asked if I had the correct grout and liquid to modify the thinset. I did.

I did not acid wash because the mapei guy almost slapped me through the phone yesterday.

I guess I misspoke about the epoxy in the grout. I do understand it's a 2 part component like the glues I have used in the past. What I meant to say is I bought "epoxy grout" from the pool supply store.

I did end up laying the thinset yesterday. After cleaning I found that 2 tiles were uneven and I removed them. I am going to paste them on later today.

How long after I paste the final tiles on before I can grout?

I have some moderate calcium buildup and I would like to remove that, as well as clean the pebbletec. After the grout cures (how long would that be) can I powerwash on low pressure or acid wash? Which would be more effective.

Lastly if I decide to not powerwash or acid wash the tile, how long must the grout cure before I can fill the pool?

Thank you for all of your help.
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Old 05-05-2011, 08:25 PM   #7
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thinset or portland with latex?


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Old 05-06-2011, 12:17 PM   #8
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thinset or portland with latex?


Thanks Bud for the thumbs up, but I need help with these questions:

How long after I paste the final tiles on before I can grout?

I have some moderate calcium buildup and I would like to remove that, as well as clean the pebbletec. After the grout cures (how long would that be) can I powerwash on low pressure or acid wash? Which would be more effective.

Lastly if I decide to not powerwash or acid wash the tile, how long must the grout cure before I can fill the pool?

Thank you for all of your help.
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Old 05-06-2011, 08:17 PM   #9
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thinset or portland with latex?


Acid will eat away at Portland grout and thinset. I don't think it will effect epoxy grout. Acid will also etch tiles...slowly but surely.

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How long after I paste the final tiles on before I can grout?
Over night.

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Lastly if I decide to not powerwash or acid wash the tile, how long must the grout cure before I can fill the pool?
You would have to pose that question to the grout manufacturer.
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