Don Stephan
Posts: 825
Joined: 2003-07-18
Location: Cincinnati, Ohio
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If you're new to vacuum veneering, Darryl's first video might be very useful. One issue Brian covered well - seams. Perhaps you could explain better how you use the rude clamping system now so we can better offer input. Usually, the "sandwich" (a substrate, glue layer, veneer) is topped by a 1/4" "caul" of non-stick material (melamine most often, or mdf/plywood with layer of 4 mil plastic over the veneer so glue squeezeout/bleedthrough won't stick to tje caul). The purpose of the caul is to prevent puddles of glue under the veneer, and the flexible vacuum bag could conform to on irregular surface rather than flatten it out. In your case, this might be an advantage as the bag would conform to varying thickness of birchbark.
How do you avoid glue squeezing up through the birchbark and onto the show surface with the rude clamp?
Do you not like the clamps you have, or are they owned by someone named Jim Rude?
Don
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