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Reply by LesB

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Posted on Clamping technique? Is this a thing? Question from a novice!

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LesB

2095 posts in 3838 days


#1 posted 01-24-2018 07:46 PM

There is a balance on tightness. Too much clamping pressure can squeeze out all the glue, especially on hard woods leaving a weak joining. Wood glue has a natural tendency to pull the wood together as it drys/cures. So squeeze out is a good indicator you have enough glue in the fitting but too much pressure is not always good. If the joints don’t fit together well when you dry fit them. Glue and a lot of pressure will not fix that. A good fitting joint needs enough pressure to push out the extra glue and hold the pieces until the glue sets up.
Normal wood glues are, Titebond II or III types, or hide glue (usually used heated).
Glue for poor fitting pieces would be epoxy (clamping only to hold together until it cures) or sometimes Urethane which expands as it cures so it needs moderate clamping pressure.
Temporary glues would be hot glue or small spot applications of CA (super glue).

-- Les B, Oregon


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