How to Grout Glass-on-Glass Mosaics

Step 1

Prep surface area for mess. Fill Bucket with clear water for sponge and hand rinsing.

Step 2

Read the manufacturer's instructions for how to mix the grout. Mix just enough grout that can be used within the recommended time frame. Grout may dry quickly.

Step 3

Using a rubber grout float or other rubber tool (spatula) apply the grout to the mosaic. Spread the grout over a small section of the mosaic keeping the tool at a 45º angle. Push the grout into the crevices.

Step 4

After filling all the spaces between the tiles, use the rubber tool to scrape off the excess grout from the surface of the tiles. Working at an angle will make sure not to dislodge any glass pieces.

Step 5

Let the grouting set for 15-20 minutes (or according to manufacturer's instructions)

Step 6

Using a well-rung damp grout sponge to wipe away any excess grout from the surface of the mosaic. Be gentle or you may scratch the surface of the glass art. Rinse out the sponge frequently. A circular motion will help from taking out too much of the grout from the crevices.

Step 7

Once the surface has been wiped well enough use a dry or slightly damp soft rag to clean the surface.

Step 8

Make sure to allow the grout to cure completely according to the manufacturer's instructions.