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Main Boards => The Bowyer's Bench => Topic started by: critman on September 10, 2013, 10:10:00 PM

Title: glueing phenolic, help needed!
Post by: critman on September 10, 2013, 10:10:00 PM
Wans't sure what to use for glue up on phenolic so I roughed it up, scored it and then wiped and re-wiped phenolic and osage block with 91% alcohol. Used unibond. Put on the long string and went to tiller tree just to check things out. Tiller looked good at short pull so I took it down and was going to exercise the limbs some and check weight. 1 short pull, 2 short pull and whap! Riser falls off. I have never had this problem with wood to wood and TBIII. What in the world do you glue this stuff up with? I have used small pieces for limb tips and used epoxy with no problems. Would like to put a piece on the back just for looks. Can you use epoxy to glue phenolic to wood?
Title: Re: glueing phenolic, help needed!
Post by: macbow on September 10, 2013, 10:34:00 PM
I think smooth on would be the best.
Always thought unibond probably would not work.
Title: Re: glueing phenolic, help needed!
Post by: Al Dean on September 10, 2013, 10:37:00 PM
I sand it with 120 grit then wipe with acetone and use smooth-on.  Never had it fail.
Title: Re: glueing phenolic, help needed!
Post by: Mike Most on September 10, 2013, 10:47:00 PM
x3 smooth on
Title: Re: glueing phenolic, help needed!
Post by: bigbob2 on September 11, 2013, 05:10:00 AM
X4 smooth on, no failures at all apart from human intervention   :bigsmyl:    rough it good with 40 grit and clean and away you go.
Title: Re: glueing phenolic, help needed!
Post by: LittleBen on September 11, 2013, 01:35:00 PM
I second the smooth-on

epoxy and polymers = good choice.

Whenever you get into the non-porous and synthetic matierials like phenolic I'd personally be using epoxy. Lots of things bond wood ... plastic, not so much.
Title: Re: glueing phenolic, help needed!
Post by: D on September 11, 2013, 04:06:00 PM
As far as I know Unibond is only for wood to wood glue joints.
Title: Re: glueing phenolic, help needed!
Post by: critman on September 11, 2013, 10:45:00 PM
ooooo boy. Ima gonna get me some smooth on. I am not going through this again. Live and learn men, live and learn. Experience is the best teacher.
Title: Re: glueing phenolic, help needed!
Post by: Dan Bonner on September 14, 2013, 02:36:00 PM
Bow snot... I mean smooth on.