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Author Topic: Glue creep  (Read 2473 times)

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Don Case

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Glue creep
« on: August 08, 2013, 09:06:58 pm »
I glued an Ipe belly to my Ocean Spray bow and used Elmers Probond Max. Was that a mistake? I think the joint is creeping. When I bend the bow it takes a set. It has only been glued up for 24 hrs, do you think it will get better? Should I have used epoxy?
Thanks
Don
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Offline vinemaplebows

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Re: Glue creep
« Reply #1 on: August 08, 2013, 09:34:55 pm »
Don,

                   I have glued up LOTS of wood, and although "creep" is a term I am fimiliar with I have never seen it. You got a pic?


VMB
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Don Case

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Re: Glue creep
« Reply #2 on: August 08, 2013, 10:41:10 pm »
There's nothing you could see in a picture. It's just when you bend it a bit it seems to want to stay bent and when you straighten it out it stays straight. It's like the glue joint is sliding a bit. That's what made me think of creep.
Don
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Offline lostarrow

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Re: Glue creep
« Reply #3 on: August 08, 2013, 11:43:17 pm »
You'll find out soon enough. If there is enough creep that it does that, it should become delaminated  in no time at all! Wear your hard hat and goggles.
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Offline Pat B

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Re: Glue creep
« Reply #4 on: August 08, 2013, 11:50:29 pm »
You probably introduced moisture from the glue into the wood. Give it a few more days in the A/C and see if it isn't better.
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Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Don Case

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Re: Glue creep
« Reply #5 on: August 09, 2013, 12:53:06 am »
Quote from: Pat B on August 08, 2013, 11:50:29 pm
You probably introduced moisture from the glue into the wood. Give it a few more days in the A/C and see if it isn't better.

Thanks Pat, I hope you're right, I don't want to sand all that Ipe off. No A/C up here, doesn't get hot enough. I'll just aim a fan at it for a couple days.
Don
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Offline Pat B

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Re: Glue creep
« Reply #6 on: August 09, 2013, 12:59:42 am »
Don, I glued a snake skin on a bow with TB glue. A few days later I braced the bow and it was as soft as a noodle. I put it up for a week over my hot water heater and it was back to normal.
  FYI, TB glue releases at 150 deg(F). If you need to remove a backing or handle that was glued with TB glue just heat it up and it will release.
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Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Don Case

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Re: Glue creep
« Reply #7 on: August 09, 2013, 01:34:26 am »
I used Elmers Probond(I couldn't find TB) but they're both PVA(I think)so should be similar. I thought the release temp was much higher. Remind me not to heat treat a laminated bow ;)
Don
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Offline bushboy

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Re: Glue creep
« Reply #8 on: August 09, 2013, 02:47:55 pm »
I leave glue ups for a least 3 days no matter the instruction say,and you being from BC I would leave it a little longer.hopefully you didn't compromise the glue up by flexing it to early,but by your discription I would go very slowly and yes listen very carefully!a bow will speak to you most times,but not always! I know it's hard to wait that long without touching the wood!lol!
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Offline bubby

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Re: Glue creep
« Reply #9 on: August 09, 2013, 04:15:47 pm »
he glue is the same,i let my glue ups set a few days before working them
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