Expect to seal every year despite popular sealant brands saying that they last three.
Marble wax seal.
Spread the sealer across the entire marble countertop with a clean dry cloth and let the sealer soak into the marble for the length of time specified on the product s container typically less.
To do this use grade 0000 steel wool.
Remove the wax.
Marble wax is used as a coating to protect the surface of the marble.
It will usually only take a few minutes.
Marble is vulnerable to staining and discoloration so it should be sealed with a commercial grade stone sealer.
Stay away from wax and polish.
At a minimum wait at least 10 minutes for the wax to soak in.
There are specific marble polishes easily found.
As you are carefully removing the wax you will need to make sure you are not getting wax back onto the countertop.
It needs to have a solid manufacturer backed product warranty.
This will remove any impurities from the surface of the marble that may interfere with the sealing process.
What should you use as a sealant.
This sealant is a protective layer between the stone and the outside world.
Since marble countertops grace many kitchens the sealer will also be certified safe for use where food is prepared.
This will make your stone yellow.
Four no wax polishes.
Lastly remove the wax from your countertop.
Spray the counter with a marble cleaner and buff dry with a soft cloth.