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Replying to message 37870
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Enrico Konig

Posts: 74

Joined: 2006-01-06
Location: Vancouver, BC

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Subject : RE: Serpentine Laminations
Posted : 2020-01-20 11:29 AM
Post #37870 - In reply to #37868
Sounds like a great commission but a bit of a nightmare at this point. My instinct would be to use a catalyzed glue like the unibond, because it dries rigid. It actually seems as hard as glass when fully cured. I have done a fair number of such projects, using rubber ply for the core, and Italian bending poplar for the substrate immediately beneath the veneer. The thin rubberply (5mm or 3/16" bends pretty tight. I have also used an inexpensive thin meranti 3 ply that is less than an 1/8" thick as well. This means more glue lines which means greater strength and less springback.

I have found I sometimes get a slight bit of twist when cutting a panel into curved parts doing it this way, but usually not. So sometimes need to fair 1/32 or less to flush faces up again before applying front and back veneers. But I always use an urea resin for these things. I also like to leave it sit after pressing for several days or longer with good air flow all round just to let it completely finish drying (but many of my laminations are 2.5" - 3.5" thick, and the curve can tighten a teeny bit as everything cures and dries).



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