How to Install a Marble Tile Backsplash

Boost your kitchen's wow factor in a three-day weekend by installing a timeless Carrara marble backsplash in an updated subway tile pattern.

By H. Camille Smith
Filed under: Kitchen Backsplash, Kitchen Tile, Kitchens, Backsplash, How To, Traditional, Marble, Tile

Remove Spacers and Clean Tile

Once mortar has fully cured, remove spacers. Using damp paper towels, meticulously clean surface of tile to remove any bits of mortar or dust.

Note: I used a quick-set adhesive that was ready to grout in just two hours, but many mortars require one-day dry time before grouting. Be sure to check manufacturer's suggested cure time of the product you use.

Seal Marble Before Grouting

Marble is porous and could easily absorb color from the grout, so it's important to seal the stone before you grout — even if you're using white grout. Just rub the tile's surface with a soft cotton rag that's damp with stone sealer.

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Mix Grout

Following manufacturer's instructions, stir together flexible grout adhesive (instead of water) and unsanded grout in a bucket using a wooden stir stick.

Tip: It's best to work in small batches, only mixing up as much grout as you can spread in 20 minutes. Stir until the mix is smooth and is the consistency of toothpaste. Before applying grout to the tile, allow it to "slake," or rest, for five to 10 minutes (check manufacturer's recommended time) so the chemicals can properly bond.