C
Concrete guy
I used to fit these for an upmarket kitchen firm a fair few years ago, they insisted the voids in the stone was ungrouted.
I used to use a pointing gun and would combine wall and floor grout to give a nice consistency that was able to fill the larger voids but still had a creamy consistency for a nice finish.
I'd dry mix BAL white or ivory wall grout with BAL Ivory wide joint grout 50/50. Thoroughly mix dry then add to water in another bucket and mix mechanically. Used to give a lovely finish and leave all the interest in the stone.
In areas behind hobs/cookers and sinks it wasn't uncommon to fit a sheet of glass over the times to keep things clean but still retain the look.
I used to use a pointing gun and would combine wall and floor grout to give a nice consistency that was able to fill the larger voids but still had a creamy consistency for a nice finish.
I'd dry mix BAL white or ivory wall grout with BAL Ivory wide joint grout 50/50. Thoroughly mix dry then add to water in another bucket and mix mechanically. Used to give a lovely finish and leave all the interest in the stone.
In areas behind hobs/cookers and sinks it wasn't uncommon to fit a sheet of glass over the times to keep things clean but still retain the look.