Glue laminations and heat

[lesken2011]

I know I have seen posts related to this, but I'm not sure I have ever seen it specifically addressed. I did a Hickory backed Ipe bow and was planning on doing another 100 shots this weekend. With the 100+degree days we are having, I am a little nervous about continuous shooting in the heat. When I did the glue up I did so in 70+ degree temperatures naturally with no artificial heat source and used TB3. I also allowed the glue plenty of time to completely cure before I started working on it. The bow shoots great, so far, with no signs of delaminating after 100+ shots. Once the glue cures, are there dangers to the glue while shooting in extreme heat?

[gstoneberg]

I think it'd take putting the bow in a car parked in the sun with the windows up before you'd reach the temps needed to affect the glue.  Shooting outside should be no problem.

George

[Pat B]

TB glues will break down at 150deg(F). As long as you don't have your bow in direct sunlight you should be OK.  If the bow feels physically hot to the touch I wouldn't brace it until it had plenty of time to cool down.

[Rufledt]

You are more manly than I, Lesken.  When I see 100+F days in the forecast I don't make plans for shooting, I crank up the A/C and crack open a mt. dew!

[lesken2011]

Whew! I was hoping it would be OK. Thanks for the feedback!!

[Marc St Louis]

You will see how much heat it takes to soften the glue with the use of a heat gun once you have tried to take the backing off a bow glued up with TB3

[Pat B]

That's how I found out the release temp, Marc. I called the TB folks and asked. I was removing a diseased hickory backing from an osage stave. It worked but was not that easy to do. I was using a wood chisel and a heat gun. Once I got one end to pry loose it came a bit easier.