How can I determine what type of paint is on my swimming pool deck? I want to repaint-need to know.?

Question

I understand that some paints can't be applied over other paints.

Answer 1

This being a pool deck leaves a lot open to what went on concrete. They may have used pool paint, which is either rubber chlorinated paint or epoxy.
You can use solvents to figure it out. If it's an epoxy based paint, solvents will dissolve a small chip you remove from an inconspicuous area. If it doesn't dissolve, it's a rubber chlorinated paint.
Same goes for either them using a latex (doubtful in a high traffic area) or acrylic or oil. A solvent will dissolve an oil chip. It won't touch latex or acrylic.
The underlying rule of thumb is that you can't apply anything but an oil or epoxy based paint over an existing oil or epoxy. You CAN apply them over a properly prepped latex or acrylic though.
The reason for it, is that oils and epoxies cure for a very long time, releasing gasses that would quickly bubble off a water based paint applied over them. Water based paints on the otherhand, don't do this.

Answer 2

Your best bet is to take a sample of the old paint (either peel a loose piece off or scrape some off) to a pool supply store and have them match what you have with a fresh container of it or a similar paint.

Answer 3

I don't know, I can't see it from here.