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.

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Apply Grout

After its slaking period, stir mortar. Dip one end of the grout float into bucket and apply to the wall, using enough pressure to work grout into the spaces between tiles. Working quickly, apply grout from multiple angles to minimize gaps in grout and ensure even coverage.

Tip: It's best to work in small areas; you'll need to clean the grout off the tile's surface once it begins to haze over.

Clean Tile

Don't let grout on the tile's surface completely dry out. Keep an eye on freshly grouted areas for a haze to develop (Image 1) then, using circular motions, clean the surface with a damp grout sponge, frequently rinsing and wringing it out in the sink (Image 2).

Tip: As you clean, look at the backsplash from all angles to check for gaps in the grout. Just fill any in with a dab of grout on your fingertip, and use the sponge to clean off any excess (Image 3). Continue cleaning grout till there is no visible haze (Image 4).

Seal Grout and Tile

The grout I selected cured in 24-48 hours, meaning it could be sealed in just 1-2 days. Check manufacturer's instructions and, after the recommended cure time, seal tile and grout using a soft cotton cloth and the same stone sealer you used before grouting. Remove any remaining drop cloths or tape (Image 2).

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