So I bit the bullet and ordered the paint I *thought* I needed. I'm not sure now if I have a chlorinated rubber or synthetic ...but I KNOW I've got 8 gallons of Paralon 2!! Can you/anyone help with determining my paint type?

I mixed 25% Xylene and 75% Mineral Spirits and DO have some paint coming off below the water line. Above it, there is paint that is NOT coming off. This paint is in good shape actually - comes off with 100% Xylene. The paint below the line has serious wear (bare in places), more so after the recent heavy duty pressure washing that I did. I thought maybe the CR might break down over time and present/test as a synthetic. Is that possible?

Along with the previous owner's decision to paint with a non-compatible paint, I wouldn't be surprised if there are multiple, incompatible types. Of course an acrylic (such as olympic Hyrdolon) would work over anything, right? I did not do the denatured alcohol test (used isopropyl). I plan to do that tomorrow, just in case it's an acrylic. I doubt that it is, but I wouldn't be surprised either. I'm thinking an acrylic would be the best option here, but I already have the Paralon 2, so I want to be sure one way or another before I send this back or sell it.

Oh, and I looked up the Aurand tool. I'd buy or rent one of these for a reasonable price, but I didn't see them offered anywhere. I could use it for other things, like the pool deck, my garage, etc. I'm not interested in sandblasting, period. 4,000lbs of sand or a crazy price to contract what's ultimately a "paint" job makes no sense.

Thank you for the help!