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Question about tile on concrete

Posted: Fri Sep 06, 2019 5:00 pm
by ttinman23
Gutted a bathroom and scraped the floor to the concrete slab. Just wondering how much of the glue I have to get off to make sure the the tile sticks to the concrete. The floor isn’t completely clean of the glue, I’m guessing about 75 percent with quarter size patches of glue throughout. Should I keep scraping or you think I’m good to try and put the tile down.

Re: Question about tile on concrete

Posted: Fri Sep 06, 2019 11:39 pm
by Shannon
I will assume you are going to use thinnest to install the tiles. I personally would give this another go with scraping. Try a razor scraper and see if you can get more off.

Re: Question about tile on concrete

Posted: Sat Sep 07, 2019 9:21 am
by A. Spruce
agreed, if using thinset to set the tile, scrape it clean with a razor scraper

Re: Question about tile on concrete

Posted: Sun Oct 13, 2019 7:24 pm
by Houston Remodeler
Scraping is best. Do not be tempted to use a solvent as that will drive the adhesive further into the slab

Re: Question about tile on concrete

Posted: Sun Oct 13, 2019 8:17 pm
by Aaron
You could also try sanding it off, maybe.

Re: Question about tile on concrete

Posted: Wed Oct 16, 2019 10:08 am
by Smart Guy
You can remove the tile adhesive residue through tile adhesive remover. let it there for a while and then scrape away the remaining glue.