Anyone used penetrol for painting bathroom wall tiling?

[powerbuff]

Did you mixit with enamel or paint it on in undiluted state?

How did it go?

Thanks

P.S. Ive currently used Zinsser Bulls Eye 1 2 3 but havent been back to see if it will peel yet (have to let it dry)

I didnt sand the tiles though and they were quite glossy.

Lets hope for the best ;)