Forum Discussion
Empty_Nest__Soo
Feb 16, 2014Explorer
Pangaea Ron wrote:SprinklerMan wrote:
I got some old signs from a sign shop , 5 x 8 sheets , yes 5 x 8 , this plywood is for outdoor signs . The guy sells the old signs for 5 bucks a piece . These sat out in the weather for 4 years and not a bit of rot at all . Go to your local sign shop see if you can find some
Use that, it's probably MDO (Medium Density Overlay) plywood.
Yes, MDO plywood is what you want.
As a boatbuilder, I can tell you that marine plywood is so graded because of the greater number of plies used and the absence of voids in internal plies. It is not usually rot-resistant wood -- it depends on the building techniques and barrier coatings to keep it from rotting.
MDO is a better choice for your job.
Wayne
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