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Wood Glue Tests and Information #1: EIGHT Wood Glues TESTED with Unexpected Results

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Blog entry by CharlieK posted 01-11-2018 08:41 PM 440 reads 1 time favorited 3 comments Add to Favorites Watch
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I started wondering about wood glue recently and the more I thought about it, the more I thought that I should do my own set of tests. I am interested in Working Time, how well different glues will work with veneer, and how well they will work with bent laminations.

I did not test for strength because Fine Woodworking did a great article on glue strength and their results were that most all glues are plenty strong enough. I also limited this to only PVA glues. I still tested EIGHT DIFFERENT GLUES, even though only PVA was in the scope of my test.

I plan to do separate tests on Working Time, Veneer, and Laminations. This first test is about Working Time. I performed three different working time tests and then averaged the results to determine which one(s) have the best working time. The biggest surprise was how poorly Tightbond III did. That was a surprise because TB III is supposed to have one of the best working times, but that is not at all what I found!

Let me know what you think about my tests.

Thanks,
Charlie

-- Adjustable Height Workbench Plans http://www.Jack-Bench.com



3 comments so far

View DocSavage45's profile

DocSavage45

8429 posts in 2711 days


#1 posted 01-11-2018 11:43 PM

Just watched your video. Very thorough , Took a coffee break in the middle. LOL! Looking forward to your next test.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View CaptainKlutz's profile

CaptainKlutz

71 posts in 1363 days


#2 posted 01-12-2018 04:18 PM

Thanks for sharing.
Interesting to see open time data.
Not sure what ambient conditions (or wood moisture level) were in your shop at time of testing, but here in Arizona with extremely low humidity, I would estimate my open time when clamped is half or less of what you measured (even with both surfaces wet with glue)?
Based on local cabinet shop recommendation, been using Titebond II Extend Wood Glue when gluing large or complex assemblies to provide more adjustment time with lower moisture levels in wood. Wished TB II extend was included in your testing?

-- I'm not a woodworker, but sometimes I do occasionally find useful tools and furniture inside a pile of lumber!

View CharlieK's profile

CharlieK

527 posts in 3662 days


#3 posted 01-12-2018 06:33 PM



Thanks for sharing.
Interesting to see open time data.
Not sure what ambient conditions (or wood moisture level) were in your shop at time of testing, but here in Arizona with extremely low humidity, I would estimate my open time when clamped is half or less of what you measured (even with both surfaces wet with glue)?
Based on local cabinet shop recommendation, been using Titebond II Extend Wood Glue when gluing large or complex assemblies to provide more adjustment time with lower moisture levels in wood. Wished TB II extend was included in your testing?

- CaptainKlutz


I agree, when I did the tests the RH was about 40% and the temp was around 70. I wish I would have tested TB extend, too. Just didn’t think of it until it was too late.

-- Adjustable Height Workbench Plans http://www.Jack-Bench.com

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