Mapei Anthracite grout ruined Tiles

theandroids · Apr 10, 2018

Anyone else used this grout before and had the same problem? Absolutely gutted, ruined all my hard work,time and money putting up tiles. Now have to take everything down. Nightmare. Any recommend grout that does not do this. I used ultracolour plus before and never had an issue, so don't know if its the ceramic tile or a combination of both.

WetSaw · Apr 10, 2018

Have you tried cleaning them with a grout residue remover or an acid based cleaner?

theandroids · Apr 10, 2018

pdc said:
Have you tried cleaning them with a grout residue remover or an acid based cleaner?

No. Even if that worked the tile is still ruined as will still get dirt in scratches over and over.

Dumbo · Apr 10, 2018

Have you considered that the tiles were already scratched but didn' show until you got some dark pigment in . I have used a lot of Mapei ucp in fact I am using the 113 cement grey now. I have used the 114 anthracite before and not had this problem . I would probably point the finger at the tiles and not the grout . Maybe get a tile check it for scratches ( rubbing with a grubby hand normally works ) and then rub some grout on it and see if it scratches. I will be very interested to know the outcome .

theandroids · Apr 10, 2018

jcrtiling said:
Have you considered that the tiles were already scratched but didn' show until you got some dark pigment in . I have used a lot of Mapei ucp in fact I am using the 113 cement grey now. I have used the 114 anthracite before and not had this problem . I would probably point the finger at the tiles and not the grout . Maybe get a tile check it for scratches ( rubbing with a grubby hand normally works ) and then rub some grout on it and see if it scratches. I will be very interested to know the outcome .

No, that's the first thing I checked. Found a few people who had this same problem with anthracite. I used ultracolour plus grey grout before too no issue. I the process f removing them.

Flintstone · Apr 10, 2018

Personally I don’t beleive the grout has done that, I think they were already scratched prior
To grouting.

Julian 'Farmer' Bonsall · Apr 10, 2018

[DIY'er and interested follower]. I used Ultracolour 114 recently on 4m2 Metro's and its on 10m2 of floor ceramics in my house.

View attachment 98129

theandroids · Apr 10, 2018

Localtiler said:
Personally I don’t beleive the grout has done that, I think they were already scratched prior
To grouting.

Julian 'Farmer' Bonsall said:
[DIY'er and interested follower]. I used Ultracolour 114 recently on 4m2 Metro's and its on 10m2 of floor ceramics in my house.

View attachment 98129

View attachment 98131

Those are some pretty nice grout lines you have there. Is that 4mm?

theandroids · Apr 10, 2018

Localtiler said:
Personally I don’t beleive the grout has done that, I think they were already scratched prior
To grouting.

Maybe. Bit cant see with my eyes, unless grout brought them out. but heard a someone on here have the same problem in the past, also a couple reviews. I will be extra careful and inspect tiles individually next time.

Julian 'Farmer' Bonsall · Apr 10, 2018

theandroids said:
Those are some pretty nice grout lines you have there. Is that 4mm?

Thanks its appreciated. Took me two days including the new sockets, moving a gas pipe and some shopping for trim.
5mm. Originally they wanted 2mm but I made a board up with 3 tiles at 5mm (just with a cartridge adhesive) and grouted and they sat it on the worktop for viewing; so that's what we have. Tiles replace blue shiny paint (its not tiled on paint) - nice.

Dumbo · Apr 10, 2018

theandroids said:
Maybe. Bit cant see with my eyes, unless grout brought them out. but heard a someone on here have the same problem in the past, also a couple reviews. I will be extra careful and inspect tiles individually next time.

As I said earlier pigment in grout got in scratches or as you say grout brought them out .

Bill · Apr 10, 2018

Your grout float can cause scratches too if it is in poor condition.

Those are scratches from something other than mapei grout.

John Benton · Apr 10, 2018

I've just used 114 UCP on white glazed tiles without any problems. As above, I think that scratches were probably there but not noticeable until the grout was applied.

PS the tiles are level. However, the installation of the window is not!!!

Simon Dale · Apr 10, 2018

Thats what we all say

John Benton · Apr 10, 2018

Simon Dale said:
Thats what we all say

And I'm sticking to it!!!!

TF

WetSaw

TF

Dumbo

TF

Flintstone

Julian 'Farmer' Bonsall

TF

TF

Julian 'Farmer' Bonsall

Dumbo

Bill

TF

TF

TF

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