Grit sizes march through the double digits triple digits and beyond.
What grit for marble.
I guarantee you that you ll be using 120 grit 220 400 500 600 and over 1 000 grit.
Sanding marble is a time consuming process.
While this method will work fine for statues tile and marble countertops sanding large areas of marble like marble floors requires a completely different process and technique.
This will require using a wet sanding process to achieve the desired results.
Repeat sanding the marble countertop in the same way as the previous step misting the surface with water to minimize abrasion marks.
The process starts by using a coarse grit paper and cutting away a fine layer of the stone to remove the scratches or saw blade marks.
Switch the 120 grit sandpaper pad out for a 320 grit sandpaper pad.
Seal the marble if desired.
After going over the entire surface with 120 grit sandpaper repeat with 300 grit sandpaper then 600 grit.
Wipe the marble with a damp sponge to remove sanding dust.
In addition polishing grit or marble dust will fill the crack and redistribute over the surface during the next step scratching rather than polishing the surface.
It s a pain but if there s enough by way of thickness good meaning non scarred or cracked marble it can be worth it.