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post #1 of 20 (permalink) Old 01-21-2015, 11:04 AM Thread Starter
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Default Glue Up Time

I am making a band saw box, and I use Titebond II wood glue. The bottle says you can take the clamp off after 30 minutes, but to wait 24 hours before stressing the joint. But on a project where I am doing several glue ups in between sawing the shapes, this translates to several days of wait time. Can I unclamp it after a few hours and then cut it on the band saw or will it break apart? Thanks
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post #2 of 20 (permalink) Old 01-21-2015, 11:17 AM
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It's also temperature sensitive, Darren, so if you can keep the clamped-glued assemblies toasty warm both before and after glueing, you should be okay.
When they say "stressing" they mean serious abuse. Simply handling it after a few hours shouldn't be an issue, especially if you've used additional fasteners (screws/air nails).
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post #3 of 20 (permalink) Old 01-21-2015, 11:20 AM
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Disclaimer: Your mileage may vary!

When gluing up panels for raised panel doors or drawer stock or cutting boards, I take the clamps off after 45 minutes.

On one occasion, I needed to make several more pieces after a screw up on some drawers. I ran them through the planer after only about 2 hours of gluing time. The stock was planed from 3/4 to 5/8 inch. I didn't have any problems. This was poplar.

My suggestion would be to do a test on some scrap and see what happens. I would hate to see you mess up your project.

Good luck.
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post #4 of 20 (permalink) Old 01-21-2015, 11:25 AM
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Mike; "...I needed to make several more pieces after a screw up on some drawers."
No, no, no! Those are called as-built design modifications...they're a feature not a fault.
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post #5 of 20 (permalink) Old 01-21-2015, 11:58 AM
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You shouldn't have any issues working the work piece after an hour. In the summer, a half hour will do.

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post #6 of 20 (permalink) Old 01-21-2015, 12:18 PM
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Quote:
Originally Posted by DaninVan View Post
Mike; "...I needed to make several more pieces after a screw up on some drawers."
No, no, no! Those are called as-built design modifications...they're a feature not a fault.
Not in my case. Instead of 10 drawer sides (5 ea mirrored) with dadoes and grooved for the drawer bottoms, I wound up with 3/7.

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post #7 of 20 (permalink) Old 01-21-2015, 01:23 PM
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2 hours should be enough unless you are really abusing it on the next step. Another way to speed things up a bit is to apply the glue to each side and then wait until the glue has gotten tacky before joining them together.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #8 of 20 (permalink) Old 01-22-2015, 12:06 PM
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I wait an hour on most glue ups and if I try to break it ,it takes wood with it when it breaks.
Another tip, if you are glueing up small parts that are hard to clamp for some reason, put the glue on and hold them together for 5 minutes with your fingers then let them set and they will glue up tight in 20 minutes.
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post #9 of 20 (permalink) Old 01-22-2015, 02:02 PM
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Ok what about flush trimming a hardwood edge on a piece of plywood that is seems stressful, how long should you wait? Of course waiting on a glue up is an useful excuse to give Momma

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post #10 of 20 (permalink) Old 01-22-2015, 02:38 PM
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An hour or two should be ore than enough. That is what I do. The glue is pretty awesome. It just won't let go.

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