Then use a square tool to check that the lines are perpendicular to one another.
How to lay ceramic tile on painted concrete floor.
Use a thin coat of tile adhesive on the back of each tile.
Use a chalk line to mark your starting point on the concrete floor.
If you are new to tile installation use grout spacers to lay out and set your tile.
Now that you have a reference point you can be sure that the first row of tiles will be properly aligned.
Begin adhering your first two rows of tile.
If the paint comes loose so does the tile.
Test how it will look like by laying the tile without adhesive.
Use spacers for accuracy.
Spread another 2 feet by 2 feet layer of tile adhesive beside the first and lay tiles on it in the same way.
Wipe up any glue that seeps up between tiles.
Answer answer it is possible to bond porcelain tile to a painted surface but it isn t recommended because the overall tile attachment is limited to the strength of the bond of the paint to the concrete.
Once the tiles are in place use a rubber hammer to set the tiles firmly into the adhesive.