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Unread 10-24-2020, 06:37 PM   #46
vlocka
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Ok thank you. Do I have to put sealer on grout for porcelain tiles?

Also about caulking- should I caulk the base of the shower floor where it meets the wall and curb??
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Unread 10-24-2020, 06:50 PM   #47
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Sealing is optional. Seeing as how the main function of sealing is to temporarily block a stain from penetrating and giving you a little time to clean it up before the stain sets...and how there isn’t a lot of potential staining agents inside a shower...many pros don’t think sealing does any good in a shower.

All change of planes are “supposed” to be caulked with a flexible sealant to allow for movement while remaining crack-free. Make sure the corner joint isn’t filled with grout.
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Unread 10-24-2020, 08:36 PM   #48
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All my joints and shower floor to wall have already been grouted.
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Unread 10-24-2020, 09:12 PM   #49
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If the joints are full of grout and they crack (relatively likely), a layer of caulk on top of that would be stressed far more than it’s designed to and is much more likely to crack itself. If you want to do the proper thing, carefully remove the grout from where it doesn’t belong, then caulk.

If you want to leave it be and take a chance, that’s your call. The only downside to waiting to see what happens is that the grout gets relatively harder each day and is far more difficult to remove down the road than it is within the first couple days after grouting.
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Unread 10-25-2020, 08:03 AM   #50
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ok thank you. Its already been 5 days since grouting so i think i will just leave it as is. Is caulking a must if its grouted? I been reading around that if its grouted you do not need to caulk it. Im not sure if its correct or not but the discussion seemed to go 50-50.
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Unread 10-25-2020, 10:00 AM   #51
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Quote:
Originally Posted by V
I been reading around that if its grouted you do not need to caulk it
I think you're misunderstanding some of what you read. The point is that if your joint is already grouted, it will do not good at all to apply a flexible sealant to the same joint. As in, no benefit whatsoever to doing so. You either grout or caulk, but not both.

My opinion; worth price charged.
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Unread 10-26-2020, 09:22 AM   #52
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Ok thank you; could I still caulk the corners if I wanted or should I just put sealer and move on?
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Unread 10-26-2020, 10:17 AM   #53
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See Post #51.
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Unread 10-27-2020, 09:31 AM   #54
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So its fine if its just sanded grout in the joints on the floor and wall?

There is no grout in my curb only mud should I caulk under the curb?
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Unread 10-27-2020, 02:17 PM   #55
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No, it's not fine at all to use grout in the transitions between floor and wall according to the ceramic tile industry. All I was pointing out was that if you have grouted the joint you no longer have the option to fill the joint with a flexible sealant as required by the industry standards unless you first remove the grout. Entirely up to you.

My opinion; worth price charged.
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