Hi Erica,

Thanks for your question. Painting glazed tiles can be tricky, especially when they have a hard gloss. To ensure best results, make sure the tiles are clean, dry and free of any loose dirt, grime and residue. We recommend using our ECOS Stainblock Primer, it's an excellent sealer and bonding primer, and then two coats of ECOS Paint to finish your look. Hint: always test in an inconspicuous area before devoting your time and effort to the whole project. Hope this helps!

Danny