Return to the Bathrooms Forum | Post a Follow-Up

 o
Why is grout sort of mottled?

Posted by sjhockeyfan (My Page) on
Mon, Nov 18, 13 at 11:47

We had our shower/tub tiled recently, and the grout doesn't look quite right to me. In some places, there's a clean line, but in many the grout looks a little mottled - grey/white/grey/white. What would cause that and what should I do about it? (FWIW, the grout on the trim pieces does not have the same issue).


Follow-Up Postings:

 o
RE: Why is grout sort of mottled?

Maybe grout wasn't mixed thoroughly before using? If you had someone do it you should ask them to come back and look and give their opinion. Were trim pieces grouted on same day as other tile, or maybe two different bags of grout were used. If you had a tile guy do this then definitely get him to explain and he can probably fix it without regrouting. Good luck!


 o
RE: Why is grout sort of mottled?

To me mottled grout is not acceptable if you're paying for the installation. I agree with lisadlu that you can get mottled grout from improper mixing of the grout. I believe you can also get mottled grout from excessive water usage during cleanup which can saturate some of the grout. One other possibility (I think I've read somewhere) is a problem with the grout itself. Do you know what grout was used (manufacturer, etc)? I would speak with your tile installer ASAP and not pay for the work until the issue is resolved.


 o
RE: Why is grout sort of mottled?

If glazed ceramic tiles were used, sometimes, the glaze runs over from the tiles and is absorbed by the grout. Since it is absorbed unevenly, hence, the mottled grout. You can get the contractor to treat it with grout colorant, so that it'll be one uniform color.

There's a color called Bright White Grout Renew (Polyblend #381) on Home Depot, if that is the color you'd like.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Bathrooms Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here