I have floor tile, 12 x 12 on my island and bar. Want to change or cover up, how without taking it off?
You can tile over tile if smooth or flat. Just tile as usual. Trowel on mastic, apply tile, grout, the seal in 2 weeks. Start with a clean surface.
My favorite recommendation...
Contact Paper! Go with the Stainless Steel styled.
Epoxy paint kits.
It is popular to paint floor tiles right now. I would check into painting your counter top and see if it is durable enough. I would talk to the guys at Sherwin Williams