Stone and Tile PROS | Natural Stone, Tile, Concrete
StoneandTilepros.com | A service of...
Your Stone and Tile Information & Resource Super Site

Tiles popping

Q: I’m laying "penny" mosaic tile on top of a heating system. I had to use a light amount of thinset in some spots due to leveling issues. As a result I have some tiles that are coming up (I have not yet grouted). I am going to use spectralock epoxy grout (which I have used before) and know it dries very hard and strong. I’m curious if the grout will hold the tile, or if I should glue the tiles to the floor before grouting. Any input would be helpful.

A: No, The grout will not hold the tile. If the tiles are not properly bonded they will eventually come up. Make sure you use the proper thinset. Many porcelain and glass tiles do not bond well with standard setting mortars. I have seen this over and over again in my inspection practice, and almost always, it is due to the improper product. I would also tap the remaining tiles to make sure they are well bonded. If you hear a hollow sound when tapping you could have a bonding issue.

Fred Hueston, Chief Technical Director, Stone and Tile PROS

0 (0)
Article Rating (No Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
Should I polish and seal my new marble flooring?
Viewed 4023 times since Tue, Nov 17, 2009
Crack In Newly Installed Quartzite Island Top
Viewed 17549 times since Tue, Mar 26, 2013
What should I ask a prospective tile setter?
Viewed 2275 times since Thu, Aug 21, 2008
Slate installation
Viewed 2179 times since Fri, Sep 25, 2009
Installing large format marble tile on kitchen wall.
Viewed 2456 times since Tue, Aug 3, 2010
Have you ever heard of Doctored Travertine?
Viewed 2077 times since Mon, Dec 14, 2009
What do I use to reattach glass mosaic tiles?
Viewed 2355 times since Tue, Dec 23, 2008
My travertine stone tile shower surround is too small for my new glass shower door.
Viewed 2839 times since Fri, Feb 19, 2010
What is the proper grout for exterior limestone walkway?
Viewed 3287 times since Mon, Jul 13, 2009
Can I use kadappa black, kotah or shahabad yellow stone as an interior flooring?
Viewed 2926 times since Mon, Dec 14, 2009