How to Care for a Marble Vanity: Sealing, Cleaning and Avoiding Etching

Marble has been used in bathrooms for centuries, and with a simple routine it will last for generations. The key is understanding what marble is: a natural stone made largely of calcite, which reacts with acids. Most care advice follows from that.

Daily cleaning

• Wipe the surface with a soft cloth and warm water after use.
• For a deeper clean, use a pH-neutral cleaner made for natural stone, or a few drops of mild dish soap in water.
• Dry the surface with a soft towel to prevent water spots, especially in hard-water areas.

What to avoid

• Acids: vinegar, lemon, many bathroom descalers and some toilet or tile cleaners can etch the surface, leaving dull marks.
• Harsh chemicals: bleach and ammonia-based cleaners can damage the sealer and the stone.
• Abrasives: scouring powders and rough pads scratch the finish.
• Standing products: toothpaste, mouthwash, perfume, nail polish remover and colored cosmetics should be wiped up promptly. A small tray for everyday bottles helps.

Sealing

Sealing does not make marble acid-proof, but it slows down the absorption of liquids and gives you time to wipe up spills before they stain.

• The water test: place a few drops of water on the surface. If they bead and stay on top after several minutes, the seal is working. If the stone darkens, it is time to reseal.
• How often: many bathrooms need resealing roughly every 6 to 12 months; busy sinks may need it more often, a rarely used guest bath less.
• How: use a penetrating (impregnating) sealer for natural stone, following the product instructions.

Etching vs. staining

• Etching is a dull, slightly rough spot where acid has reacted with the surface. It is a change in finish, not a color.
• Staining is a darker mark where a liquid has soaked in, such as oil or colored cosmetics.

Light stains can often be lifted with a poultice made for stone. Etching on polished marble can be polished out with a marble polishing compound or, for larger areas, by a stone restorer. On honed marble, etching is usually much less visible.

Bathtubs

Rinse the tub after bath oils, salts and colored bath products, and avoid leaving bottles standing on the rim. Follow the same sealing routine as for sinks.

Embrace the patina

Over many years, marble develops a soft patina. Many of the most admired marble bathrooms in old hotels and homes are loved precisely for that character.

Every MEG piece is covered by a 1-year warranty against manufacturing defects, and we are happy to advise on sealing your specific stone. Explore our marble vanities or contact us with any questions.