Discuss Grout discoloration in the Canada Tile Advice area at TilersForums.com.

N

nigel os

Hi lads,

New to forum so forgive me if its been done before. I used to get a lot of grout discolouration whilst working in Greece. I used to mix the grout leave it for 10 minutes apply it and wipe off with long continuous strokes with a damp but well squeezed spongue. Sometimes beautiful but other times especially on floors some pesky stains. Does anyone know what causes it. My technique or quality of grout? I learnt to tile with a colleague in Crete and never really got to the bottom of it. Always told by Greeks that it was red soil contamination
but that was a fob off for all. (always complimented on our proper setting out and not the Greek habit of starting full tile in a corner just to avoid cuts). Any ideas and is there a grout anyone swears by? Thanks for any info.
 
T

tilerbarry

Always double mix the grout with a paddle on your drill, and with the mapei grout never be tempted to add any more water to the mix while you leave it stand for a couple of minutes before the 2nd mix because you'll find it will get wetter looking on its own and when you do your 2nd mix it will be perfect consistency to use. Every few minutes give it a knock up with your bucket trowel ( no water ) and the grout will be good to use for over an hour in bucket if you do this.
 

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Thread Information

Title
Grout discoloration
Prefix
N/A
Forum
Canada Tile Advice
Start date
Last reply date
Replies
7

Which tile adhesive brand did you use most this year?

  • Palace

    Votes: 9 6.0%
  • Kerakoll

    Votes: 14 9.4%
  • Ardex

    Votes: 11 7.4%
  • Mapei

    Votes: 44 29.5%
  • Ultra Tile

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  • Wedi

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  • Norcros

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