Yes, wet, just washed off all the loose sand left after jointing. It will look a tone or so lighter when dry and will only get fractionally lighter over time. It is officially 'charcoal', the only way to get darker is to use porcelain or similar, 'black' slate comes up the same colour after a year or so.
Yes, wet, just washed off all the loose sand left after jointing. It will look a tone or so lighter when dry and will only get fractionally lighter over time. It is officially 'charcoal', the only way to get darker is to use porcelain or similar, 'black' slate comes up the same colour after a year or so.