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Unread 04-27-2006, 06:55 AM   #1
agoings
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quick question about thinset...need answer quick

Do I have to let the thinset between the CBU and ply dry before I place the tile on the CBU? Also, when you put the thinset on then do you screw it down, then let dry? Thanks guys I'll post pics when it's done!
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Unread 04-27-2006, 07:00 AM   #2
Andrew21
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Hi there,

A first name would be nice so we can call you something

As for your questions:

1. From what I hear, you have to let it dry. Give it 24 hours and then you can tile. But I heard also that you can start tiling as soon as possible. Wait for the pros to answer you on this one.

2. I think you're still talking about the plywood, thinset and then CBU? If so, yes, you have to screw it down. Use the hardibacker screws with the square drive.

I just did that this weekend but won't work on it till this weekend. So mine has been drying for over 5 days! LOL.. can't wait for the pics.

Andrew
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Unread 04-27-2006, 07:05 AM   #3
jay f
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If your talking about the thinset that the cbu will be set in, set in wet, nail or screw down, then continue to the next sheet. When the cbu is complete, if you need an adult beverage ( or any beverage for that matter), enjoy. Set your lines and begin tiling immediately (if you wish, or not). You may wait to tile, but it is not manditory. Hope this clears it up.
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Unread 04-27-2006, 07:12 AM   #4
agoings
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Name is Amanda, I have another post, I know I know you all liike to keep it together but I wanted an uncluttered answer...sorry Anyway, what you're saying is that there is no need to let the thinset dry between the CBU and ply before setting the tile? Good, then I won't waste thinset...Thanks guys!

Last edited by agoings; 04-27-2006 at 07:14 AM. Reason: content
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Unread 04-27-2006, 08:08 AM   #5
Brian in San Diego
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Amanda,

I don't know if I was reading anything into your last statement..."Good, then I won't waste thinset...Thanks guys!", but be aware that your thinset only has a "pot life" of 60-90 minutes. You'll have to be working quickly to spread your thinset, screw down your CBU and then start setting tile. I recommend you mix the thinset in batches you can use up in under 90 minutes. I have the same problem...it always seems I throw out about 20% of what I make. But look at it this way...thinset is much cheaper than the heartache and aggravation of having to redo it.

Brian
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Unread 04-27-2006, 08:59 AM   #6
stullis
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Good point Brian.

Also it is a good practice to wait a day to let the thinset set up under the CBU.
Not always practical though. Small area the tile would get set right away, larger area would most likely wait until the next day to start setting. Foot traffic can break the bond.
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Unread 04-27-2006, 11:10 AM   #7
agoings
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no foot traffic, at least I hope, these are countertops Thanks for the tips...and good point about the batches!! So if there is no foot traffic then is it still ok to place the tile before waiting 24 hours?
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Unread 04-27-2006, 11:42 AM   #8
Mike2
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No need to wait Amanda for countertops.

Guess what?? Had you posted this question in your main countertop thread we would have all that background information and this answer might have been a little less "cluttered".

Couldn't resist .
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Unread 04-27-2006, 01:34 PM   #9
agoings
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You are sassy Mike....but I suppose you're right....although...REMEMBER which bear you are poking buster, this baby inside doesn't make me any nicer these days
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Unread 04-27-2006, 01:40 PM   #10
Mike2
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Oh, oh!!

I done it now.
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Unread 04-27-2006, 01:43 PM   #11
bbcamp
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Way to go Mike!
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Unread 04-27-2006, 06:50 PM   #12
mightyatom
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I have read in a few threads to use un-modified thinset under the CBU and modified thinset to set the tile so if this is correct, how could you not waste thinset ? Am I missing something or is it alright to use modified under both ?

Jay
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Unread 04-27-2006, 07:33 PM   #13
Mike2
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You're messing with Amanda's thread Jay. Brave soul.

Amanda is using Hardibacker. Modified just fine in that case. Matter of fact, Monsieur Jimmy Hardi even recommends it.
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Unread 04-28-2006, 06:19 AM   #14
agoings
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now you are just sucking up Mike......
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