Don Stephan
Posts: 825
Joined: 2003-07-18
Location: Cincinnati, Ohio
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I've never had a problem using a 4x8 platen but pressing much smaller items. I have a bottom caul on top of the platen at least as large as the item being pressed, sometimes the bottom caul is much larger. If I'm just veneering one side of a piece, the veneer and substrate are on the bottom caul and that's it. If I'm veneering both sides of a substrate there will be a top caul, just slightly longer and wider than the substrate, on top.
Since I'm still using a 20 mil vinyl bag, I like to have the top corners rounded off slightly or else covered with pieces of evacunet, rubber sheet, canvas, or something similar to protect the bag against sharp corners.
Followup note on the inlay you are planning, don't hesitate to do a test pressing with both types of veneers. Some oily veneers might pose adhesion problems for any type of glue; some types of wood can show staining from glue bleed through.
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