Epoxy????

[Trick]

I'm in the process of getting started making longbows for my 4 sons and myself and I have some questions on epoxies.

Is smooth-on my best choice?

On laminating risers, do I use the same epoxy as limb laminations?

Do I cure risers the same time and temperature as the rest of the bow or do I risk the riser coming apart during the glue up?

I'm just now getting the shop (garage) set up and these are questions I had before I buy anything.

[Sharp Shooter]

I've just started making bows myself and smooth-on is what I used for riser and limbs with no problems. I would recommend curing in a heat box as well. Tony

[jess stuart]

Sharp Shooter offers good advice.  Smooth on is the way to go, best of the two or three types I have used in the past.  Wouldn't even consider anything other than smooth on.  I have used the same temp for both the riser and the limbs, without problem in the past.  I usually use different temps. now too much heat can cause wood to become to dry and check.

[yewsage]

i use G2.  you don't need a heat box at all.  seems to last forever.

[Trick]

Thanks guys.

Yewsage,
where do you get that G2?

I would like to hear more about it first, though.  I'm really wanting to go with "time proven" stuff (no offense meant).

Patrick

[Innocente]

is this the g2 you refer to?
 http://www.adhesive.com/G2-glue

[Robertfishes]

I have used smooth on for 7 glass bows, no problems. I think Black Widow uses Versamid??(spelling) for epoxy in their bows. I am going to keep using the smooth on since it seems to be the industry standard and kennym sells it..

[Jason Jelinek]

I've used Smooth-On and G2 and prefer to use G2.  Smooth-On feels really thick.  They will both make a bow.

[soopernate]

I used G2 (I only know of Lee Valley Tools as for distributors) and have so far been pretty satisfied with it.  I have only glued up a kids bow and some knife handles with it but it seems to do the job allright. I would try smooth on if I had an oven but I don't and G2 seems to work just fine.

[John Roberts]

I noticed the interest in G2 from Innocente's link. However, our G2 (the one linked) is not an epoxy, so it must be another company's G2 that was intended. Just wanted to clear up any confusion.

We do manufacture and sell several epoxies  http://www.adhesive.com/type-epoxy  and from a quick look at the smooth on one referenced, I'd suggest a look at our E5 Epoxy  http://www.adhesive.com/E5-epoxy

I have not used our epoxies for bow repair. But always glad to learn of additional uses.

John Roberts
GM, SmartAdhesives

[Innocente]

huh...that's news to me, i didn't realize a company can follow traffic back to a referring site.  

the world gets a little smaller every day.

[Jason Jelinek]

You can also use G2 in an oven.  The directions state the cure time for various tempeatures or at least a formula to figure out the cure time.

[Trick]

Does Lee Valley Tools have a web site? I'm going to have the oven built here shortly so I will probably start with smooth on, but if John Roberts wants to send me some E5 to test????.

Thanks guys all info is a great help.

Patrick

[Jason Scott]

www.leevalley.com

[Jason Scott]

Are you guys using the Lee Valley G2 epoxy on fiberglass or all wood laminate bows?

[soopernate]

YES!

[Swissbow]

I use standard type L from the German company r&g. It's mainly used in construction of glider planes and boats and it cures very well at room temperature ( have you ever tried to put a glider plane into a heat box ?!?!?! ).

Here's a list of all the distributors. You can find USA almost at the end of the list.

 http://download.r-g.de/rg_fachhaendler.pdf

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Andy

[Trick]

Thanks Jason.

Have you ever used it to make bows??

[ChristopherO]

John Roberts,
(incase you check back in)
Thanks for the imput.  The problem is, though, that we are mainly small time users of Smooth On, G2, or similar epoxies.  The Quarts of A&B Smooth On only cost $50.00+/- where as your E5 was $70.00 for the quarts A&B.  Also, the E5 did not cure translucent.  That is an issue when a bowyer wants a beautiful wood laminate to show through the clear glass.  Smooth On shines for this application.  
I did enjoy reading the information on your product, though.

[Jason Scott]

Here is my deal. I have only used smooth-on and without any problems so far. One time I way over estimated a stack for an aggressive r/d longbow design that I used smooth-on with. That bow was surely over a hundred pounds after rough shaping. In my sobbing attempt to salvage the bow by narrowing it down it ended up flipping the tips every time I tried to string it. I was and am still amazed that the glue holds after being torqued that severely so many times. That bow is on the wall in my garage to remind me every time I start a new one. I don't think I would use anything but smooth-on even of someone gave me another glue for free. The G2 seems to be half the price but for approx $15 per bow with smooth-on it's negligable to me. I am glad to know that there is another alternative in case smooth-on EA40 gets discontinued though.