It’s best to create mosaic tile garden art with a concrete base and not terracotta. Even if you seal the outside of a terracotta pot, with a waterproof sealer, moisture eventually seeps in causing the pieces to fall off while the terracotta pot turns to dust. It’s not a pretty picture…. and if you live with snow and ice, it’s probably a really good idea to store mosaic tile garden art for the winter.
Patience is the key, when you’re tiling a pot, it’s on a curve … chillax. Slow and steady wins the race.
Thinset is the adhesive of choice and is easily found in most, if not all, home improvement and tile stores. Read and follow the directions on the bag or box or … talk to a human in the department for their expertise on Thinset and Grout or again … you could just read the directions on the package.
If the pieces you’re gluing to the pot won’t lay flat, and that’s what you want them to do, cut the pieces smaller until they do.
Let the Thinset dry for a minimum of 24+ hours, before grouting.
Choose a sanded grout color, read and follow the directions on the grout bag or box and mix to an oatmeal consistency.
Grout on. Grout off. Grout off. Grout off … until the grout lines are smooth and the pieces are clean and shiny. Continue to buff the piece with a soft cloth, as needed.
Once the grout is dry (minimum 24 hours) Seal the grout with grout sealer that can be found at home improvement and tile stores.
To extend the life of mosaic tile garden art … reseal with a waterproof sealer, at the beginning of each season.