Subject: Re: Laminating question

From: [email-masked] (Robert Klein)
Date: Sun, 30 Mar 1997 09:02:45 GMT

I have used a plastic resin glue for exterior work.  It is a brown
powder that is mixed with water but I do not remember the brand.

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On Mon, 24 Mar 1997 23:45:42 -0800, [email-masked] wrote:

>I'm building an arched lattice entryway to a garden and I thought the
>best way to get the arch on top would be to laminate some wood together
>then trim the edges for the semicircle. I've never laminated anything
>before and hope someone can tell me what kind of glue to use and how to
>clamp it. Would regular pipe clamps work? I'll be using just plain old
>Doug Fir since it's an outside structure and will be painted anyway.
>Thanks.

Regards,

Robert Klein
Robert's Antiques and Restoration
Pensacola, FL  32505  USA
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
If you can't find time to do it right the first time,
how are you going to find time to do it over?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
[email-masked]
[email-masked]

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From: Philip Roybal <[email-masked]>
Date: Sun, 30 Mar 1997 09:41:46 -0800

> >Doug Fir since it's an outside structure and will be painted anyway.

I've had good luck with Weldwood plastic resin glue, which is a powder
you mix with water. It has a long open joint time, so you don't have the
same panic clamping you do with yellow glue. 

For clamping, remember that the clamp force must always be normal
(perpendicular) to the joint, or you'll just slide the wood around. For
an arch, that means you may have to secure temporary clamp blocks to the
structure. I'd try a band clamp around the curved section, butting the
ends of the curve against a straight 2x4. That way you'll get relatively
even pressure around the assembly. If need be, you can use the band
clamp to hold things in place while you install further clamps across
the laminations at spots that aren't getting enough pressure.

Phil