I have tryed BALL ebony grout but customer was not happy as it drys a dark charcoal colour, he is looking for a grout that is black not dark grey, had considered using cement dye but am a bit concerned that it will effect the stability of the grout and still may not give desired results.

Id prefer just to use a different grout if you folks know of one that is actually black not dark grey.

bal charcoal grout dries black, mapei do one also, ardex flex fs black

If you want a really proper, almost shiny black, like tar, epoxy grout is the only one.

Mapei 120 is a good strong black

I agree with Mosaic girl.
If the grout is to match a shiny black tile in particular, it's never going to be jet black.
The tile itself will always make a cement based grout look duller- so greyish.

Epoxy would be the only way of getting pure black.

Originally Posted by Sir Ramic

Mapei 120 is a good strong black

Thats the baby, as yet i have not found a cement based grout that is as black..

Originally Posted by Sir Ramic

Mapei 120 is a good strong black

Here, here that man

Must be used properly though, not too much water or it's ruined.....

also be careful when washing off as too much water in sponge will fade color

pci grout is great

Used the pci once and it's good grout.