Can you put ceramic tile over glass tile on a back splash?

Yes, you can install ceramic tile over glass tile on a backsplash, but proper preparation is essential. The glass surface should be cleaned thoroughly to remove any grease or debris, and it's recommended to use a suitable thin-set adhesive designed for bonding to non-porous surfaces. Additionally, you may want to roughen the glass tile surface slightly to improve adhesion. Always check the manufacturer's guidelines for both the ceramic tile and adhesive to ensure compatibility.