Asked on Oct 15, 2015

Removing grout from stone tiles

by Robin
Is there any way to remove dried grout from stone tiles? When we tiled our bathroom using mosaic tiles, we were not quick enough in some areas to get the grout wiped off the tiles and now some areas do not look so great. We used sealer on the tiles before grouting thinking that would help with the stones. Any ideas?
  7 answers
  • Janet Pizaro Janet Pizaro on Oct 15, 2015
    I would start by using a 50/50 mixture of white vinegar and water to loosen the grout first. Leave the mixture on for awhile. It may not be enough to remove all of the grout but it will start to loosen it. Then try to find a grout cleaner and gently apply as not to get it on the tiles itself.
  • Val Val on Oct 16, 2015
    I have used this little tool on ceramic tiles and found it invaluable. It works like magic. I believe they sell it on Amazon.
  • Mandy Brown Mandy Brown on Oct 16, 2015
    Go to Lowe's or Home Depot, they sell a product where the mastic and grout is that is basically and acid. Depending on how heavy the grout is on your tile you dilute the acid. Sponge it on your tile (not the grout lines) and wait a few minutes to scrape the grout off then go back over the area with a baking soda mixture (to stop the acid from working) then again with clean water.
  • Pat Moran Pat Moran on Oct 16, 2015
    if the cleaners don't take all of the grout off, grab your handy-dandy dremel tool - be sure to do it outside, wear safety glasses, and start with the softest grinder head you have.
  • Kerry Kerry on Oct 16, 2015
    I've used either a chisel or a razor knife to scrape off small blobs of dried grout.
  • Sherrie Sherrie on Oct 16, 2015
    Muriatic acid, if it is just a little bit your trying to remove buy The Works toilet bowel cleaner. It also has Muriatic acid in it, wear gloves use in a well ventilated area. I use a scraper and scrape it off.
  • Sophie Breau Sophie Breau on Oct 25, 2015
    I have used a razor blade also, and a metal putty trowel