"Teamcasa" wrote:


"alexy" wrote in message
.. .
I am getting ready to do a bent lamination, and have questions about
adhesives and springback.

I have heard that urea formaldehyde or plastic resin glue is the best
to use for this application because of the long open time and lack of
creep once set. I am having a hard time finding it, though. I can get
a gallon from Highland Woodworking but because of its relatively short
shelf life, I would end up throwing away 95% of it. Anyone know a good
source for small quantities (Atlanta area desired, but online source
okay, too) or whether another type of glue would work as well. My
application is not load-bearing, and in fact will be "captured" by
another structure. I'm laminating 4 pieces of 1/8" thick poplar for
edge banding of the inside of an elliptical arch cut in plywood.

I have a form for bending my lamination, that I made slightly
undersize, anticipating that there will be some "springback" when the
lamination is removed from the form. Anyone have any ideas or formulas
for estimating how much that will be in advance, or is it just a case
of trial and error?
--
Alex --

Alex, For the project you describe above, I would use polyurethane glue.
Its has sufficient open time for your project. I only use plastic resin
glue when I need + 20 minutes to get the project clamped up.

Dave

I've thought about that, but how is it for creep? My impression is
that UF and epoxy are better in this regard. But maybe that's academic
in my relatively low-stress project?
--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.