How do you apply alkyd paint to ceramic tile?

First, clean the tile and grout with a harsh cleanser such as T.S.P. Next, apply a bonding primer to the tile with a brush or roller. It can be oil-based or water-based, and you can thin it slightly if needed to get a smooth, even coating. Once the primer is dry, apply your alkyd (oil-based) paint over the primer with brush or roller.