PG warp going from wet to dry climate

#22

OK…dense here (speaking of wood…ha ha)…even if there are two layers in PG ply…and both of them run the same direction, why cannot a second piece of that wood be turned so that the long grain runs perpendicular to the first piece. Sheesh…clear as mud? Maybe I’ve got it all wrong.

#23

It could!

With standard plywood, the alternating direction of the plys in a single sheet would have the same sort of effect. Granted, the more layers there are, the more pronounced the effect: my 3mm BB plywood only has 3 plys, 1mm each. It warps just fine, lol.

The outer plys/veneer of proofgrade are quite thin, however, the bulk of the proofgrade ply being the mdf center section. They don’t have the… uh…directional rigidity to prevent oppositional torsion… ok, I may be making up terms now (@jacobturner Help, my physics vocabulary is…ungood!)

1 Like
#24

How’s about the soft chewy center can’t stop it from being bendy?

8 Likes
#25

This one…I like THIS definition the best! And, not surprisingly, I understand it the best, too! Thank you.

closed #26