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Joined
Jan 6, 2020
Messages
10
Location
auckland
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Professional Wall and Floor Tiler, Contractor, Floor Fitter
Hi All,

Weve had one of our contractors install some small hexagon mosaics recently and have just had an angry phone call about the condition of the grout.
Mosaic Grout.jpg
Not sure of the cause, but this is what it looks like - pretty shocking. The gappy patch in the middle is probably the worst of it

Digging out the grout manually would take forever (its about 5m2 of backsplash and each hex is 23mm wide) so looking for alternatives
Have looked into various cement residue removers, but cant find anything that says it will fully remove grout - do you think it might atleast soften it so it can be shaped and reset? Or soften it enough to easily remove then overgrout?
Would it be easier to just rip all the tiles off the wall and start afresh?

Thanks
 
Joined
Jan 12, 2020
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Location
bedale n yorks
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Professional Wall and Floor Tiler, Homeowner, Contractor, Bathroom Fitter, Floor Fitter
try grouting over this abortion with a fast drying grout like bal micro balm use a new grout pad and do only a small patch at a time get all grout of area and move on then polish off with a dry pad only wash at the end thats what i would do.it looks bad due to grout been to wet for the mosaics and been draged out when grouting. its an easy solution.
pay my expences and ill come out and fix it :cool:
 
Last edited:
Joined
Apr 17, 2016
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Location
Aylesbury
Hi! As I can see from the picture, the grout overfill the gap just in a small area.

If this is true, I would take a bit of the grout off, in the area affected, then grout again all the wall with a thin grout, something made for 2-4 mm, to make good grip with the cracks in the old grout
 

Higgz

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Joined
Feb 14, 2020
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1
Location
leicester
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Professional Wall and Floor Tiler
I grouted something like that recently, I would rather rip that out and start again.
 

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Joined
Jan 6, 2020
Messages
10
Location
auckland
What member type are you?
Professional Wall and Floor Tiler, Contractor, Floor Fitter
  • Thread Starter Thread Starter
  • #8
Tried a few chemicals, like mapei pulicol 2000 and phosphoric acid - which softened the grout up a little, but still a mission and a half.
Think we've now got it to an ok standard - far from perfect, but acceptable
 

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