<a href=showthread.php?s=&postid=6497694#post6497694 target=_blank>Originally posted</a> by 240-Reefer
If you want the mdf and not plywood go with MDO. "O" meaning outdoor. they use waterproof glue. I would use the plywood.
:lol: Just water proof plywood with a wood fiber and resin overlay. Most commonly used by sign makers and people with lots of spare cash.
Don