Terra cotta tile floors or walls are practical and these tiles may also be used to decorate various items of furniture. The surface of a terra cotta tiles may deteriorate in time, especially if the tiles are kept outdoors, but you have the choice of painting over them.
Step 1 - Clean and Prepare the Tile
Clean the terra cotta tile, making sure to remove mold, moss or other debris. Use a mild detergent or a tile cleaner with a soft brush. Allow the tiles to dry completely before going to the next step. Use a sander and 220 grit sandpaper to remove any remains of paint, glaze or gloss from the surface of the tile. Remove the dust that forms after sanding the surface using a clean piece of cloth or a soft brush.
WARNING: to avoid getting paint particles or other harmful materials into your eyes or lungs, wear safety glasses and a face mask while sanding the tiles.
Step 2 – Apply the Primer
Choose a highly adhesive, oil based primer and apply it on the surface that will be painted. Apply 1 coat and allow to dry (depending on the brand you buy, this may mean leaving it overnight). You may also apply a second coat.
Step 3 – Apply the Paint
Get an oil based paint and apply a thin coat. Allow the area to dry and apply a second coat.