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heat treatment on laminated bow is a fool choice

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leehongyi:
i built a 140lb boo backed Bubinga several days ago. the glue i used was titebond iii. yestoday i felt it was some more bent than original so i used a heatgun to treat it. after 1h's work it came back to ideal straight with brown appearance and some bbq smell. but when i strung it i found that the bamboo strip and wood were delaminated! the titebond melted when i heat it. what a fool choice to heat treat a laminated bow!

Del the cat:
Yeah, we all make mistakes, but we are man enough to confess to help others from doing the same. :)
I wasted a lot of time trying to heat straighten a bamboo backed Yew, the glue survived, but the bend returned after a week or so.
I ended up sawing it in half and making a take down.
Del

leehongyi:

--- Quote from: Del the cat on April 16, 2015, 04:30:14 am ---Yeah, we all make mistakes, but we are man enough to confess to help others from doing the same. :)
I wasted a lot of time trying to heat straighten a bamboo backed Yew, the glue survived, but the bend returned after a week or so.
I ended up sawing it in half and making a take down.
Del

--- End quote ---

what glue can resist the heat?

Ian.:
Heat treat the belly before you glue it to the bow, no glue is going to resist the temperature that you should get if you heat treat properly.

PatM:

--- Quote from: Ian. on April 16, 2015, 08:26:24 am ---Heat treat the belly before you glue it to the bow, no glue is going to resist the temperature that you should get if you heat treat properly.

--- End quote ---
Probably not strictly true. Epoxies and other adhesives are available that resist 600 degrees F.
 We just don't tend to go looking for them but they are out there.

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