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
Installing large format marble tile on kitchen wall.
Viewed 2574 times since Tue, Aug 3, 2010
Section of Newly Installed Stone Is Darker Than Surrounding Stone
Viewed 268 times since Fri, Mar 1, 2019
Have you ever heard of Doctored Travertine?
Viewed 2185 times since Mon, Dec 14, 2009
Can I use kadappa black, kotah or shahabad yellow stone as an interior flooring?
Viewed 3049 times since Mon, Dec 14, 2009
Travertine Filling and Installation
Viewed 2283 times since Wed, Sep 16, 2009
Cracked granite countertop
Viewed 3156 times since Fri, May 21, 2010
What do I use to reattach glass mosaic tiles?
Viewed 2493 times since Tue, Dec 23, 2008
Membrane for cracked tile replacement?
Viewed 3162 times since Fri, Sep 25, 2009
My travertine stone tile shower surround is too small for my new glass shower door.
Viewed 2983 times since Fri, Feb 19, 2010