Ok fellas I goofed and used the wrong plywood on a personal project a few years ago that is exposed to the elements. Long story short the ply is delmaninating. I've replaced a couple bad pieces but would like to coat the entier project with a waterproof paint or primer to get a few more years out of it before starting all over with the right ply.
Any suggestions for a waterproof coating? I was thinking Drylok but it only list masonay for its use. Didn't know if I put this on ply am I just going to exacerbate the problem?