"Painter's Touch" on the other hand, works well on balsa sheeted foam floats. Go figure.

It is a rust-oleum product. I am talking about the water based stuff in the pint and quart cans that you brush on.

I think there is a version of it in a spray can that is solvent based. I could see that not "sticking" to epoxy resin floats.

No idea what "Painter's choice" is.