It all comes down to preparation of the tile and proper primer/paint. Check out this article for more information. <a href="https://www.house-painting-info.com/article-simon_phillips-painting_bathroom_tiles.html">Painting Bathroom Tiles</a> or <a href="//questions.house-painting-info.com/how-do-i-paint-ceramic-tile.html">How do I Paint Ceramic Tile?</a>