Painting Marine Plywood
I would like to paint a name sign for a new beach house which we have just purchased. The sign will of course, be hung outside of the house. I was told that marine plywood would be the best wood to use, but would be difficult for paint to take on it. Can anyone give me advice on what, if anything, I should put on the surface to help it take the paint more easily and also last longer?
Thank you in advance.