5 Tips for Painting Marine Plywood DoItYourself.com
marine plywood is a particular variety of plywood that's been treated to withstand moisture. As the name implies, it's often used on boats and other items that are in frequent contact with water. Whether it's for marine use or exterior use, marine plywood still needs to be painted in order to be fully durable, and painting it properly can require some know-how. 1. Sand First. Sand paper. before applying any kind of paint, you need to sand marine plywood as you would any other type.