Tile lost its shine!
My bath/shower tile doesn't have any shine any longer. The house was built in the 70's and there is tile halfway up the wall everywhere that shines. The shower tile looks so dull, but the further away from the shower head, the better looking they are. I have tried vinegar and alcohol in addition to scrubbing bubbles. I can't scrape anything off with my fingernail. Do you think the finish is just old? Or is there a way I can restore it. It's not a bad looking bathroom because everything is white. Easy to keep looking crisp with paint color and towels. Painted the vanity black and hung a nice mirror above. Any advice?