problem grouting

[charlie1]

hi guy's,

done a porcelain floor the other day. just had a call back saying the grout had dried different colours, black, grey, and white in places. i was using granfix flexi grey grout. I'm going out today to see but has anyone had this problem before?

Mark.

 

[GazLC81]

What colour was the grout?

I tend to mix my grout every now and then as I have been told that with darker grouts the colour can drop to the bottom of the tub.

Gaz

 

[Fekin]

What colour was the grout?

I tend to mix my grout every now and then as I have been told that with darker grouts the colour can drop to the bottom of the tub.

Gaz

But if it's going from black to grey to white, that's a large colour change isn't it ?

Only things I could think of would be, was there any contamination in the grout bucket fom another job ? , was the grout thoroughly mixed first time round ? or was the floor adhesive dry enough or did you grout in the same day ?

 

[charlie1]

yes i grouted same day.

thanks for the advice, i am going to check the dammage and see what i can do to fix the problem. worst case scenario would be to re grout. Correct?

 

[Fekin]

Possibly, but there will be more people on here later that might have a better idea.

 

[DHTiling]

Another granfix grout problem....seems to be a few cropping up .....some grouts especially the coloured ones need to mixed well before commencing grouting.....dave..

 

[Fred]

I had it once. I was told it could have been the fact that the water to grout mix each time wasn't the same! I grout with Ardex only now.

 

[devonmark]

I use granfix a lot and have not experienced any problems...maybe time for a change before I do..may try mapei..

 

[howard]

i use mapei all the time its the best ive used

 

[enduro]

I use bal or ardex, mix with a drill let stand for five minutes, and never had any problems.