View All > 6

How to grout a backsplash

Once your mortar is dry and your tile is firmly set, you're ready to grout your backsplash.

Quick Tip

If grout sticks to the tile, pat it with sponge. Then, take a white nylon scrub pad and scrub the tile. It can remove grout easily.

A step-by-step guide to how to grout a backsplash.

Once your mortar is dry and your tile is firmly set, remove all of the spacers. Refer to your grout’s packaging for complete mixing and application instructions. Then, use a mixing attachment on a variable-speed drill at low speed to mix the grout according to the instructions on the packaging. If your tiles are stone or terra cotta, wet them before applying grout.

1. Apply Grout

Hands packing in grout with a grout float.Apply the backsplash grout with a grout float, working the grout into the narrow spaces and filling all the joints completely. Work at your own pace and direction that seems natural to you. Holding the grout float at a 45-degree angle to the tile, move it diagonally across the backsplash.

Don't be afraid to really pack it into the joints. Many people find it easiest to pack the grout into the joints using the small end of the grout float, rather than the long edge. This method works just fine, but remember to use the long end of the float to scrape off excess grout after the joints are filled. If you have excess grout, scoop it up or scrape it off into the bucket.

 

2. Let grout set. Then clean with sponge
A woman taking a sponge over the freshly grouted and set backsplash tile.Let the backsplash grout set according to the instructions on the grout packaging. If you think it's set, touch the grout with your finger. If no grout sticks to your finger, then immediately begin the next phase of grouting. After the grout sets – typically for about 10 minutes – you’ll need to begin cleanup.

Slightly dampen a large, small-pore, synthetic sponge. The sponge should not be wet, so make sure you wring it out well. Lightly wipe the sponge across the tile surface, avoiding removing too much grout. Also use the sponge to smooth out the grout joints. If grout pulls out of the joints, you need to allow additional setting time.

 

3. Wring sponge

Two hands wringing out a sponge over a blue bucket.

Clean the sponge frequently, and wring out as much water as possible each time. Replace the bucket of cleanup water often. If too much grout is removed, then pack the grout into the joint again and let it set once more.

 

 

 

 

4. Wipe away grout haze

A pair of hands wiping several tiles with a grout haze on them.Wipe away any remaining grout with the sponge and let the grout cure for the required time. Refer to the grout packaging for appropriate cure time.

 

 

 

 

The last step of a backsplash tile installation is to caulk the backsplash.

Our diy Expert

Ron Sheldon

Ron Sheldon is a tile and floor installation guru. He has far too much knowledge on obscure topics like grout and floor leveling. A passionate tile contractor by trade, Ron’s spent the past decade dedicated to educating people about tiling, and has great advice on how to perfect your project.

Email Your Question

Leave a Comment

    *  Name
    *  Email (will not be published)
      Website
Next Step:
How to caulk a backsplash