Start by thoroughly cleaning the marble bathroom vanity. Use a pH-neutral marble cleaner and a soft cloth to wipe down the surface, removing any dirt, grime, or soap residue.
Be sure to cover the entire surface, including the edges and corners, with a thin, even coat of sealer. Avoid applying the sealer too thickly or letting it puddle, as this can result in an uneven finish.
Let the sealer penetrate the marble for the recommended time as per the manufacturer’s instructions. The sealer will need about 10-15 minutes to absorb into the pores of the marble and create a protective barrier.
After the recommended time has passed, use a clean, dry cloth to wipe off any excess sealer from the vanity surface. Make sure to remove all the excess sealer to prevent streaks or haze from forming on the marble.
Once the sealer has cured, perform a water test to ensure that the marble vanity is properly sealed. Pour a small amount of water onto the surface of the vanity and let it sit for a few minutes.
If the water beads up and does not penetrate the marble, then the sealer is working effectively. If the water absorbs into the marble, it may indicate that the sealer needs to be reapplied.
You can polish your marble after sealing it. Wait at least 24 hours so that the sealer can cure and then spray polish on to the marble and buff it with a soft, lint free cloth.