[Wally Arntzen]

Hi Dean,
Yes it is an oil base primer but you should go to a high end paint supplier that knows paints well. I got mine a Sherwan Williams and made it clear to the guy what I wanted to do and he guaranteed it would not fail if you clean it well and sand it properly and he was 100% right on.
I will probably redo the bath in the 88 I'm living now sometime soon and I will redo the shower area which is a high gloss laminate finish and am confident that I can get done, even in the shower area and it will not come off.
Nearly all paint failures are due to improper preparation or not using the right product or both.
The walls in my bath are covered with a viynal like a lot of our coaches and mine is very tight with no seams showing. I probably will seal it and paint right over it and generally this works very well. If it it don't you just have a more difficult time getting it off but its doable.