1. DON"T buy plywood at Home Despot or Lowes - they don't know how to store it!! Drive around to the back of the store and see all the lumber that is stored OUTDOORS!!!
2. Plywood has a grade stamp on it. AB/sanded is 1 A side (no imperfections) and 1 B side ("football" plugs allowed) INTERIOR GLUE.
3. CDX has 1 C side - fairly rough - and 1 D side - pretty bad - the X means exterior glue.
4. Marine grade birch ply has "water resistant" glue - better than exterior but not "water proof".
5. You probably won't find anyone at HD or Lowes that has a clue as to what a grade stamp is or means!!
6. Go to a lumber yard - pay a couple of bucks more but get something that is GOOD!!! My
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam
Bob D As long as you surface as many times as you dive you`ll be alive to read these posts.
Bob,
I used birch plywood for my benchwork decking and I haven't had any problems with delamination due to moisture from applying plaster or scenery materials. I don't know what type of glue is used in making birch plywood, but I think it would take much more moisture than what your scenery will contribute to cause any delamination in the plywood.
Don Z.
Research; it's not just for geeks.
Could anyone tell me what type glue is used in birch plywood and more importantly would you use it for sub roadbed where hardshell type scenery is to be used or do you think that the moisture in the hardshell will cause delaminations?
Thank you
Bob D