grout not same colour

[Unregistered]

Thanks for all replys. I stuck to insructions and grouted next day after using rapidset. Only probablity is over washing perhaps. Still any solutions as every time I walk in kitchen it winds me up!!!!!

 

[Time's Ran Out]

Thanks for all replys. I stuck to insructions and grouted next day after using rapidset. Only probablity is over washing perhaps. Still any solutions as every time I walk in kitchen it winds me up!!!!!

:welcome:Mr clock.
Dave sums it up in no.4&9
Had the same problem a couple of times over the years. Once I was actually paid to cut out all the joints and re-grout!
Just 1 month ago did walls and floor in same grout/same bag/same day and walls dried patchy floor fine - had to rake walls and re grout next day.
It was fine if you catch it early enough otherwise a grout rake and great care is needed!

John.

 

[doug boardley]

it could be a number of things, but efflorescence from over washing is usually the cause imo

 

[White Room]

Never had a problem with bal superflex grout, use mapei now though

 

[Terry Cottar]

So is this normally more of a problem when it's a polymer modifeid flexi grout? I must admit, I have never heard of or had an issue with patching in standard grout

The problems you have had, has it been from the same bag?

How much grouting have you done then?

tel

 

[Nkayjay]

I have just laid a floor using bal grout grey. It has dried very patchy in colour any suggestions what when wrong?? Same bag used throughout.

How long did you leave the floor to set before you grouted it? I have seen shading complaints where it turns out that it was grouted too soon after tiling and the moisture from the adhesive trying to come out has affected the colour. This was usually when using dispersion adhesives tho.