Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet


Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Cleaning, Restoration and Sealing

Sponsors


Reply
Thread Tools Search this Thread
Unread 06-16-2019, 08:57 AM   #1
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Mapei grout discoloring issue with possible Dirtex source...

Suggestions on how to rectify yellowing of white Mapei grout in a shower will be appreciated. Before grouting I cleaned the wall tile with Dirtex and all went well for a short period of time. I do not think I rinsed the wall area sufficiently. Now, I have a yellow tint coming through the white grout. I think it is a residue of the cleaner used. The tile was also sealed after grouting before the issue became noticeable. Any one ever deal with this? Suggestions will be greatly appreciated.....
__________________
Andy
Chairandy is offline   Reply With Quote
Sponsored Links
Unread 06-16-2019, 03:02 PM   #2
Tool Guy - Kg
Moderator -- Wisconsin Kitchen & Bath Remodeler
 
Tool Guy - Kg's Avatar
 
Join Date: Feb 2005
Location: Oak Creek, WI
Posts: 21,166
Hmmm.....

A few questions:
1) So, did you sprayed the un-grouted tile and the open grout joints were coated with the Dirtex cleaner....never to be rinsed? Or....?

2) Exactly which grout did you use and how many days has it been since grouting?

3) What size tile, what material tile, & how wide are the grout joints?

__________________
Tonto Goldstein... but my friends call me Bubba

Help an awesome summer camp!
Tool Guy - Kg is offline   Reply With Quote
Unread 06-16-2019, 06:32 PM   #3
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Info requested on shower with grout discoloring.

The 3 by 5 white subway tile with lugs was installed over Kerdi board with thinset. Walls were grouted with Mapei white and approximately 2 weeks later grout was sealed. All looked great till the yellowish streaking became visible in white grout joints and seem to have gotten worse with time! The yellow is undoubtedly from the cleaner used to prep tile before grouting. Is there anything that will clean this ugly outcome? Help??? Thanks for any input....
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-16-2019, 06:39 PM   #4
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
3by5 ceramic subway tile was installed with lugs to leave a 1/16 +spacing using thinset. Tile was grouted approximately 2 weeks later and sealer applied with brush 2 weeks after grouting....
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-16-2019, 06:47 PM   #5
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Info requested on shower with grout discoloring.

Bubba,

Tile with open joints was washed with Dirtex before grouting process.. (Residue left from this operation is the source of my problem, I believe.) Grouting was done shortly after washing with Mapei grout. Two weeks later all was sealed and project has been completed some 3 to 4 weeks ago...
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-16-2019, 08:08 PM   #6
Tool Guy - Kg
Moderator -- Wisconsin Kitchen & Bath Remodeler
 
Tool Guy - Kg's Avatar
 
Join Date: Feb 2005
Location: Oak Creek, WI
Posts: 21,166
Details are important.

Did you spray the cleaner on the tile that the joints became saturated?

Exactly which grout did you use?

Exactly which sealer was used?

__________________
Tonto Goldstein... but my friends call me Bubba

Help an awesome summer camp!
Tool Guy - Kg is offline   Reply With Quote
Unread 06-17-2019, 04:05 AM   #7
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Info requested on shower with grout discoloring.

The cleaner was applied with a sponge and not sprayed on.

The grout was Mapei sanded ..... white in color.

Sealer was (I believe )a Champion product... ceramic tile sealer..
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-17-2019, 04:12 AM   #8
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Info requested on shower with grout discoloring.

Correction on grout used ... I believe it was UNsanded since the grout lines were so small...
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-17-2019, 05:02 AM   #9
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Specifically, grout used was Mapei Ultracolor + FA color white
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-17-2019, 06:05 PM   #10
Davy
Moderator -- Mud Man
 
Davy's Avatar
 
Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 31,669
Andy said, "The tile was also sealed after grouting before the issue became noticeable."

If the yellowing didn't show up until after it was sealed then it could be the sealer. Exactly which sealer did you use?
__________________
Davy

www.davystephenstile.com
Davy is offline   Reply With Quote
Unread 06-17-2019, 11:19 PM   #11
Tool Guy - Kg
Moderator -- Wisconsin Kitchen & Bath Remodeler
 
Tool Guy - Kg's Avatar
 
Join Date: Feb 2005
Location: Oak Creek, WI
Posts: 21,166
Yes, which grout sealer?

I did a Google search for Champion Tile Sealer and am coming up empty.
__________________
Tonto Goldstein... but my friends call me Bubba

Help an awesome summer camp!
Tool Guy - Kg is offline   Reply With Quote
Unread 06-18-2019, 05:22 AM   #12
Chairandy
Registered User
 
Join Date: Sep 2010
Posts: 35
Info requested on shower with grout discoloring.

Mapei rep is convinced it was iron in water used to mix grout and is suggesting Mapei grout refresh colorant... it is an epoxy to be applied to the grout joint. Anyone ever deal with this...
__________________
Andy
Chairandy is offline   Reply With Quote
Unread 06-19-2019, 07:22 PM   #13
Tool Guy - Kg
Moderator -- Wisconsin Kitchen & Bath Remodeler
 
Tool Guy - Kg's Avatar
 
Join Date: Feb 2005
Location: Oak Creek, WI
Posts: 21,166
Can we clarify the sealer? I wanna make sure it’s not the source of troubles. What product was it? And any idea of the sealer’s age?

__________________
Tonto Goldstein... but my friends call me Bubba

Help an awesome summer camp!
Tool Guy - Kg is offline   Reply With Quote
Unread 06-22-2019, 05:12 AM   #14
claycarson
Commercial Cleaning and Maintenance
 
Join Date: Apr 2004
Location: Arlington, outside Boston
Posts: 782
We've used Mapei and other brands grout colorant. Tends to work well in discolored grout situations like this.

It was designed for sanded grout, sticks to rough and scratchy surfaces, like sanded grout, not to smooth surfaces like the face of a subway tile.

To bond to unsanded, the grout needs 2 thorough cleanings, first with an alkaline degreaser, brushed well with a nylon brush and rinsed. Then, only after grout is dry, an acid cleaning. We've had good success with TileLabs Grout Haze Remover with glycolic acid, diluted about 50/50 with water or a bit stronger.

Then you literally paint every joint in the shower with the thinnest brush you can buy. We use a super thin Taklon brush we buy from Michael's online store. Very slightly damp clean absorbent cotton or microfiber cloth towels immediately wipe off the face of the tile. Getting it off the tile is most of the work before it dries is tricky cuz it dries in seconds-minutes.

Frustrating at first...cheap white wine may help with this stage...or maybe not so much...

Finished product often looks awesome. May need future touchups, save extra product and note brand name and color. Heavy duty chemicals for cleaning may damage the finish, so it may conceivably be an ongoing need to touch up a line or two every few months. But that's a minute or two of work. For the initial cleaning and application, we set aside a full workday for a typical shower.

Sent from my SM-G920T using Tapatalk
__________________
Clay

www.tileboston.com
claycarson is offline   Reply With Quote
Reply

Stonetooling.com   Tile-Assn.com   National Gypsum Permabase


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Please Help Grout is discoloring tracidomke Tile Forum/Advice Board 13 02-26-2018 12:38 PM
Mapei caulk source? Ivy G Tile Forum/Advice Board 4 10-28-2014 11:03 AM
Issue With Mapei Ultracolor Grout MNTileGuy Professionals' Hangout 41 12-22-2012 10:27 AM
Source for Mapei Keracolor Caulk in Houston? dmilamj Tile Forum/Advice Board 2 01-12-2007 05:31 PM
Grout Discoloring gwalton Tile Forum/Advice Board 5 02-07-2005 04:01 AM


All times are GMT -6. The time now is 02:35 AM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC