Author Topic: Hide glue temp  (Read 6139 times)

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Offline Pat B

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Hide glue temp
« on: January 04, 2011, 04:47:57 pm »
My wife bought me a crock pot from the thrift store for $5. I was planning to use it to keep hide glue workable while doing a sinew backed bow. I filled the crock about 1/3 full of water, plugged it in and waited to check the temp. After an hour or so the water was 150deg(F). is that too hot for sinew? It was too hot for me to hold my finger in!  :o
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline jamie

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Re: Hide glue temp
« Reply #1 on: January 04, 2011, 06:27:19 pm »
thats pretty ht pat. you could just put the glue pot in the water and use it to heat .
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Offline CherokeeKC

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Re: Hide glue temp
« Reply #2 on: January 04, 2011, 06:31:09 pm »
I have gotten hide glue too hot before and it shrivels the sinew up and makes it rubbery.  You want the hide glue temp right at the point that you can still put your finger in it.
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Offline HoBow

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Re: Hide glue temp
« Reply #3 on: January 04, 2011, 07:32:44 pm »
I've read 140 was the perfect temp. Great find for you!
Jeff Utley- Atlanta GA

Offline Pat B

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Re: Hide glue temp
« Reply #4 on: January 04, 2011, 08:54:14 pm »
Unfortunately this is a one speed crock pot. No temp adjustment.
  I was going to have water in he crock pot and the glue is another container floating in the water.
  I'll experiment and see how hot that gets. Might just have to use this crock pot for stews!  >:(
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline mullet

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Re: Hide glue temp
« Reply #5 on: January 04, 2011, 09:53:34 pm »
 Pat, I've done it the way Jamie has. Just put it in the water when it starts to cool.
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Offline Pat B

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Re: Hide glue temp
« Reply #6 on: January 04, 2011, 11:38:18 pm »
That sounds like the way to go, Eddie.   I got wood, shreaded sinew and water buf horn, now all I need is the cajones to start.  ;D
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Justin Snyder

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Re: Hide glue temp
« Reply #7 on: January 05, 2011, 12:11:58 am »
I read on several violin making sights that 140 is the perfect temp. You certainly don't want to get much hotter though.
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Offline Pat B

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Re: Hide glue temp
« Reply #8 on: January 05, 2011, 12:38:09 am »
140 might be good for the glue but what about dipping the sinew into it.
  I have a small aroma theropy crock pot I bought at wally world. I think David Knight told me about it. I used it with the last sinew backed bow I built but it would get too hot and shrivled the sinew as soon as it touched the hot glue.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline JW_Halverson

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Re: Hide glue temp
« Reply #9 on: January 05, 2011, 10:34:39 pm »
Just make sure that when you are done with the hide glue that you don't store it in the crockpot to dry out.  I have had it attach itself to the glazed finish inside the pot and pull the glazing right outa the pot!  Chipped the crap outa my pot making it useless!

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Offline JackCrafty

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Re: Hide glue temp
« Reply #10 on: January 06, 2011, 12:03:21 am »
I dunno...  150 degrees sounds OK to me.  Back when I was washing dishes I think the rinse temp was 180 degrees?  Anyway, just do the "shrivel test".

This is one reason I switched to fish glue.  ;D
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Offline hedgeapple

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Re: Hide glue temp
« Reply #11 on: January 06, 2011, 01:01:05 am »
My crock pot has a low and high setting.  With the lid off it's 135.  On occassions when I had the lid on it to heat it faster, it would go to about 150 and shrivel the sinew.  I usuall remove the pot from the metal cooker and set in on a towel while I"m sinewing.  It will cool pretty quickly.  But, I always test it with one small, single strand of sinew first.
Dave   Richmond, KY
26" draw

Offline Pat B

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Re: Hide glue temp
« Reply #12 on: January 06, 2011, 01:36:19 am »
I tested this crock pot with the lid on it. I'll try without the lid and see. Thanks for the info guys.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Barrage

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Re: Hide glue temp
« Reply #13 on: January 10, 2011, 09:29:37 pm »
I've been thinking about this lately as well.  What happens if you put one of those on a dimmer type switch?
Travis

Offline AndrewS

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Re: Hide glue temp
« Reply #14 on: January 17, 2011, 12:03:31 pm »
At 110 -115 protein begins to denaturate. If the temperature is to hot the sinew shrivels and is going to be part of the glue..... The glue is denaturated protein.  I think a Temp between 110 - 130 is ok. More is to hot.