plywood glue

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Adrian harrison
Posts: 30
Joined: Thu Apr 07, 2011 12:33 pm
Location: Prince George BC Canada

plywood glue

Post by Adrian harrison »

I bought this from Amazon and I think its the wrong glue, I bought this thinking it was resorcinol but I don't think it is. Has anyone here used it? I'm building a super Huck and wondering if it would be OK for the bulkheads?
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jcallends
Posts: 361
Joined: Tue May 26, 2009 4:46 am
Location: Coldwater Michigan

Re: plywood glue

Post by jcallends »

Your right Adrian, it's the wrong glue. This is basically woodworkers glue and is not intended to be used in boats at least those that are used in water. From information previously posted on this blog resorcinol glues require very close fitting joints to be effective. Most home boat builders use structural epoxy for joints. Joints don't have to be close fitting and is relatively easy to use. This kind of adhesive can be ordered from Glen-L and you will know you have the best available for your boat.

Adrian harrison
Posts: 30
Joined: Thu Apr 07, 2011 12:33 pm
Location: Prince George BC Canada

Re: plywood glue

Post by Adrian harrison »

Thanks for the reply and yes from now on I'll just buy from glen l :)

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Locutus
Posts: 123
Joined: Thu Feb 26, 2015 9:23 am

Re: plywood glue

Post by Locutus »

Weldwood is rated water resistant, not waterproof. But then, so is epoxy when it comes right down to it. If you go over to the Stevenson Projects site, you'll find that they specify Weldwood as their glue of choice, because it's relatively cheap and easy to work with.

For what it's worth, I am building a Stevenson Super Skipjack and elected to use epoxy based glue instead, as well as epoxy encapsulation. (System Three Gel Magic and Silver Tip epoxy.)

My 2 cents.

P.S.:
In the appendices of one of Larry Parday's books (Classic Boatbuilding, I think), He talks about what he refers to as "Winter grade" resorcinol, which does not require as much clamping pressure and will fill gaps up to 1/16 inch. I think he said it was available from some company in the UK. Of course, the book was written in the late 1980s or so. So things may have changed since then.

He also mentioned many epoxy glue failures he's encountered, but zero resorcinol failures.

Check out this thread:
viewtopic.php?f=5&t=26929

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