Apply two layers of primer, following the manufacturer's directions for drying times between each coat. Once the primer is dry, add an epoxy or two-process paint to a paint tray. Roll a light layer of paint onto the tile, using a paint brush to touch up where needed.

To prep your tiles, sand them smooth and clean them with a multi-purpose cleaner. Repair any chips or cracks with epoxy. Apply an epoxy or latex bonding primer, then paint with a semi-gloss or gloss latex-based paint in whatever color you like.