How To & Repair : How to Paint Old Subway Tile Real Old Subway Tile
Quote from How to Paint Old Subway Tile :
To paint over your old subway tiles, spray them thoroughly with a degreasing spray and wipe each of them carefully with cleaning cloth. After that, fill a bucket with warm water and add two squirts of dishwashing detergent. Use it to wash the tiles, rinse them with plain water and dry them with a soft cloth. Wipe the surface of each tile with a saturated-isopropyl alcohol-paper towel and apply enamel surface conditioner to the surface of the tiles using paintbrush in a thin and even layer. Allow it to dry for about 15 minutes. After that, apply enamel paint using a paintbrush in careful strokes to outline the perimeter of the tile paint while staying away from the grouts of each tile. Fill the inside area with a thin and even layer of paint and repeat it with each tile, then allow it to dry for a day.