Author Topic: what glue to use for laminating  (Read 9398 times)

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Offline chriss880

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what glue to use for laminating
« on: March 15, 2010, 10:25:42 am »
i have gluded my oak bow sevarel times with elmers construction glue whatever but it keeps pulling away? what kind of glue should i use?

Offline adb

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Re: what glue to use for laminating
« Reply #1 on: March 15, 2010, 11:17:46 am »
It might not be the glue... it could be your prep is poor. That being said, I use TB3 for everything, with no problems.

Offline youngbowyer33

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Re: what glue to use for laminating
« Reply #2 on: March 15, 2010, 11:39:39 am »
try roughing up ur surfaces to be glued and don't clamp really tight
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Offline chriss880

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Re: what glue to use for laminating
« Reply #3 on: March 15, 2010, 11:54:17 am »
what kind of glue should i use i have gorilla glue comstruction glue and elmers

Offline Josh

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Re: what glue to use for laminating
« Reply #4 on: March 15, 2010, 11:54:48 am »
Some glues you need a really smooth surface for gluing and some glues you need to have a rough surface.  I use both TiteBond III and Urac 185 two part glue from Nelson Paint.  The titebond needs a really smooth well-mated surface while with the Urac surfaces need to be roughed up. Titebond shrinks as it dries while urac has gap-filling properties.  Both are great glues in my opinion just depends on the application for which glue I choose.  Also, make sure to degrease your glue surfaces before glue up with acetone if it is an oily wood.  You also just want to clamp snugly, too much clamp pressure will squeeze all your glue out starving the joint making a weak glue line.  Hope this helps...  :)  
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Offline bigcountry

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Re: what glue to use for laminating
« Reply #5 on: March 15, 2010, 11:56:04 am »
Does anyone ever use Smooth on for hickory backed or bamboo backed glue ups?  I got some left over.  I have two bows I need to glue up.
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Offline El Destructo

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Re: what glue to use for laminating
« Reply #6 on: March 15, 2010, 11:59:40 am »
you don't want to use Gorilla Glue...It foams as it sets...and this leads to air bubbles in the Glue Joint....Stick with Titebond ....or Urac....hell even a good two part ...all of these are better than Gorilla...or Elmers....JMO
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Offline Hillbilly

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Re: what glue to use for laminating
« Reply #7 on: March 15, 2010, 12:24:46 pm »
What are you glueing exactly? If you're trying to glue a handle riser onto an oak board, it's probably not the glue. If there is any bending through the handle section, no glue will hold it for long.
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Offline chriss880

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Re: what glue to use for laminating
« Reply #8 on: March 15, 2010, 01:24:37 pm »
i am making a oak bow and i am glueing 2 layers

Offline Gordon

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Re: what glue to use for laminating
« Reply #9 on: March 15, 2010, 05:10:58 pm »
Titebond or Urac are your best bets. For my bows I use Urac.
Gordon

Offline wildman

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Re: what glue to use for laminating
« Reply #10 on: March 15, 2010, 06:02:02 pm »
I use smooth on and have never had a bow delam on me yet not knocking any other glue just my choice.I have used it for glass,boo,and wood backings , but like the other guys said prep is 90% I also try not to build a bow when the humidity is up as my shed is open. A hot box is a handy rig to have as well the constant temp. and dry air helps the curing alot. 3rivers sells any glue you would need what ever you choose. good luck  ;D
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Offline dragonman

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Re: what glue to use for laminating
« Reply #11 on: March 15, 2010, 07:29:39 pm »
TB3 is good but needs properly mating surfaces if under a lot of stress. Cant go too far wrong with 2 part epoxy though
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Grunt

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Re: what glue to use for laminating
« Reply #12 on: March 15, 2010, 07:41:21 pm »
Chriss, how many clamps are you using during your glue up?  How are you spacing them? Sometimes it ain't the glue or the surfaces.

Offline wildman

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Re: what glue to use for laminating
« Reply #13 on: March 15, 2010, 07:53:06 pm »
grunt is right it needs to be tight,I use a method I learned from Robustus using jute string and wedges takes a little time and practice but keeps everything tight.
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Offline chriss880

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Re: what glue to use for laminating
« Reply #14 on: March 15, 2010, 08:21:09 pm »
i am using 3 clamps like 12 inches apart