Grouting penny round tiles transforms a collection of small, decorative pieces into a cohesive and stunning surface, but it requires a specific approach to achieve a flawless finish. Because of their diminutive size and unique shape, the grout lines can easily become uneven, and the tiles themselves are prone to shifting if the installation is not handled with precision. This process demands patience, the right tools, and a methodical technique to ensure the final result is both beautiful and durable, whether you are refreshing a bathroom floor or installing a statement feature wall.
Preparing Your Workspace and Tools
Before the first tile is set in mortar, preparation is the key to a successful grouting phase. You must ensure the tile adhesive has fully cured, which usually takes 24 to 48 hours, and the surface is completely clean and dry. Any dust, debris, or residual thin-set mortar must be removed from the surface, as it will interfere with the grout's ability to bond properly with the tile edge.
Essential Tools for Penny Round Tiles
Working with small tiles requires specialized tools to maintain accuracy and prevent damage. You will need a high-quality rubber grout float with a soft edge, a few sizes of rubber grout sponges, a small bucket for mixing, and a sturdy grout saw or utility knife for cleanup. For penny rounds specifically, a grout spreader or a small notched trowel can be helpful to push grout into the tight spaces without scratching the surface.
The Mixing and Application Process
The consistency of the grout is arguably the most critical factor in achieving clean lines with penny round tiles. You want a mixture that is firm enough to hold its shape on the trowel but loose enough to flow into the joints and create a proper bond. Mixing too much water will result in a soupy mixture that slumps off the tiles and creates messy hairlines, while too little water will make it impossible to work into the spaces.
- Slowly add water to the powdered grout and let it rest for a few minutes before mixing to achieve the correct rheology.
- Scoop a small amount of grout onto the rubber float and hold it at a 45-degree angle to the surface.
- Spread the grout diagonally across the tiles, forcing the material deep into the joints.
- Work in small sections to prevent the grout from drying on the surface before you are able to clean it.
Mastering the Diagonal Technique
Because penny round tiles are circular, the direction of your grout application significantly impacts the outcome. Using the rubber float, you should work the grout across the tiles in a firm diagonal motion. This angle is effective for pushing the grout into the circular voids and ensuring the material fills the joint completely, rather than just sitting on top of the tile surfaces.
After the grout has been applied diagonally, you should immediately switch to a 90-degree angle to remove the excess. By scraping the float perpendicular to the tile layout, you create a surface that is level with the top of the tiles. This step is vital to prevent the grout from hardening on the raised edges, which would make the cleaning phase much more difficult.
Timing is Everything
The window of opportunity for cleaning grout is narrow, and with penny round tiles, you must act quickly. As the grout begins to haze over—usually about 10 to 20 minutes after application—you need to start the cleaning process. Waiting too long allows the grout to cure on the surface, making it almost impossible to remove without damaging the finish of the tiles.
Cleaning and Polishing the Surface
Cleaning penny round tiles requires a gentle yet persistent approach. Start with a damp, not soaking wet, grout sponge to wipe away the excess grout. Rinse the sponge frequently in clean water to ensure you are always using a clean section to wipe the tiles. The goal is to remove the grout residue without pulling the freshly applied grout out of the joints.
Once the majority of the residue is gone, you can use a soft, dry cloth or a sturdy sheepskin to buff the tiles. This polishing step not only removes the final film of grout haze but also brings out the natural shine of the tile. For a truly high-gloss finish that makes the circular patterns pop, you can apply a tile sealer once the grout has fully cured.
