I seem to be missing something while trying to veneer panels in my veneer press bag. I’m actually veneering over some 3/4″ maple and oak faced ply-wood I’ve had sitting around for a couple of months with some fabulous ripple mahogany. It’s going to be a hanging DVD “cabinet” minus any doors…so I’m not using a lesser “backer” grade veneer for the insides as you will see the insides all the time. Since it’s for DVDs my pieces are not that larger either.
I’m using a dark veneer press glue, a 4×4′ lower “batten” of MDF and a breather mesh on top of my pieces. I’ve been veneering (vacumming) one side of my panel for 45 minutes, then removing it, fliiping it over, and veneering (vacumming) the other side. Trouble is when I take it out of the press the panel (regardless of size) always has a “cup” to it.
Should I be using a top batten instead of a mesh fabric? I like the fabric because I can see whats going on during the pressing and can abort real quick if I need to adjust something thats slipped or missed something. Or am I doing something out of sequence with my procedure? Perhaps I need to veneer both sides at the same time? Is 45 minutes enought time for the plywood to develop a cup that won’t equalize when the other side is done? Would this be the case for all substrates that might be used like solid wood or MDF?
If I should be vennering both sides at the same time heres an additional question. Since I’m using a large 4×4′ 3/4″ MDF base as a bottom batten in my veneer bag, how do I ensure that any squeeze out will not adhere my veneered panel to the MDF base? Would I lay a layer of breather mesh on top of the MDF batten, followed by the panel, topped with another layer of breather mesh?
Any suggestions of thoughts about what I may be doing wrong or what I could try would be greatly appreciated. My “trial and error” pile has grown to large for my comfort.