Waterproof paint for showers can be found at home improvement stores such as Home Depot, Lowe's and ACE Hardware. The average cost of waterproof products ranges between $20 and $30 per gallon.
Before painting bathroom tiles, there are a few simple steps to take to ensure the success and longevity of the paint job. First, the tiles must be thoroughly cleaned and dried with a lint-free towel. After cleaning, sand the tiles. Then, apply a primer to the tiles before painting. Sanding the tiles helps the primer adhere to the tile's surface.
An alcohol-based primer works best. Alcohol-based primers help the paint stick to the tile surface; however, alcohol-based primers are slightly more expensive. Apply a thin, even layer of primer to the tiles. After priming the tiles, allow plenty of time for the primer to dry completely, at least three hours.
After the primer has thoroughly dried, the tiles are ready to be painted. Apply a thin, even layer of the paint in the same way you applied the primer. Use a roller, if possible, to paint the tiles. This helps apply the paint more evenly. Allow at least 24 hours for the paint to dry before deciding if another coat is necessary.
Remember to follow all manufacturer's safety instructions listed on the products. Ventilate the area, wear protective gloves and clothing, and use a painter's mask.