You need to know what you re working with before you attempt to sand natural stone granite or marble.
Can marble be sanded and glued.
A polished finish is the shiny high gloss type of finish with the deepest color saturation commonly seen on marble and granite countertops.
Remove any slight etching in the marble caused by acidic substances using 220 grit sandpaper as well.
After allowing the marble to sit clamped for the necessary time often times 24 hours is the recommended time remove any unwanted material from the edges of the glued marble.
Cleaning up the surface after glue cures.
Run your finger over the surface after smoothing to make sure that you can no longer feel any trace of the scratch.
Epoxy glue or resin is a quick drying solution for repairing and gluing marble.
Both polishing compounds and diamond abrasive disks will successfully grind.
Change to a 220 grit sandpaper and go over the sanded area smoothing the marble surface.
Press the chipped piece into the hole and hold firmly for the amount of time recommended by the adhesive manufacturer.
Covering the cultured marble walls is not a good idea.
There are two sides to this question.
Repairing or restoring marble surfaces is an achievable do it yourself project.
Epoxy glue comes in two parts which are mixed together before gluing.
Epoxy grout can be color matched to suit your.
Because a polished shiny finish is so common many people believe that all marble is supposed to be polished or shiny.
With chalk paint you can cover marble in one or two coats with little to no sanding beforehand.
Follow the packaging instructions when mixing the two parts.
In the above image you can see just how clean the edge can be when you follow each step of this process for gluing marble.
Natural stone granite and marble vary in density.
Technically it can be done but in practice it is avoided.
Sanding marble is a time consuming process.
Brush the bonding material on the bottom and edges of the chipped piece of marble and the chipped area of the marble object.
Cultured marble is an acrylic composite and so it will require an epoxy setting material after the surface has been roughed up with either a grinder or sandpaper.
Can you sand or grind marble down.
Step 3 glue marble with epoxy grout.
However as noted above marble or nearly any stone can have a number of different finish types.
To the untrained eye they all appear to be very dense and hard but they are all different.
Epoxy grout is faster drying than cement grout.
Natural stone is brittle and can crack when sanded.
There is no doubt that painting over marble can be challenging but only if you do it the old fashioned way with hours of preliminary sanding.