GROUT PROBLEM - Tile Advice

[nalla]

Hi lads, i've just finished tiling a full bathroom (floor + walls) job looks fine only problem is that the wall tiles (white brick effect 200x100) which i have grouted using bal superflex white is the wrong colour, the customer is saying that they wanted grey grout, now i was never told this and it was a mix up between the customer and the bathroom supplier, they are quite happy for me to re-tile and pay me again but rather than take off over 600 tiles is there any decent way i can just colour over the white grout and change it to grey???? Thanks in advance for any advice.

 

[On one]

Universeal Grout Rescue - Colour & Seal 237ml Mid Grey £16.50 in stock - next day UK delivery plus Tile Cutters and Tiling Tools - http://www.tradetiler.com/consumables/grout-colorant/universeal-grout-rescue-colour-seal-237ml-mid-grey.html
Not used it before,but this might be able to help

 

[hmtiling]

Or this
Fuga Fresca 112 Medium Grey (12 x 160grm) - http://lilleytileandstone.co.uk/mapei/fuga-fresca-112-medium-grey-12-x-160grm

 

[Sean Kelly]

Those grout colorants really do work. It will take a bit of time, but it's going onto fresh grout so there is no need to clean the grout first. Good luck.

 

[One Day]

I've used Universeal grout rescue quite a few times and it's dead easy. Allow a full day though, and get a few white emulsifying pads.
Far easier than tiling and the results are superb.

 

[Flintstone]

Do you need to clean up the grout well if it's old grout imp?

 

[james hailwood]

Used mapei fuga fresca a while ago, really good stuff.

 

[One Day]

Do you need to clean up the grout well if it's old grout imp?

Yes - thorough clean and dry. Although I've never had to - all mine has been fresh.

 

[nalla]

Just an update on this job lads, after some of the advise above i got a leaflet on the grout rescue and showed it to the customer, they were happy for me to go ahead and use this product (they now wanted charcoal) i've never used this before but it was easy to use and produced a great finish, i left the grout rescue for almost an hour before removing it off the tiles. Anyway thanks for recommending this product it saved a lot of hastle and a lot more work.

 

[Flintstone]

Wicked, any photos?