G2 epoxy users question

[buddyb]

Are any of you using the air hose method of clamping  with your G2 epoxy?

[Flem]

I use G-2, but I'm not a Hoser. Are you concerned about loosing pressure during it's long cure time?
The same rule applies to G-2, as other epoxies. For every 18deg increase in cure temp, cure time is cut in half. So 144deg gets you down to 3hrs with G-2. If thats not your concern, please ignore the previous info.

[buddyb]

Thanks Flem that is good to know information.

I was mainly concerned with applying too much pressure in the hose and starving the glue joint since G2 states it doesn't require clamping, although I know you have to clamp the laminations.

I do worry about the hose losing pressure during the curing process.

I been thinking of getting away from the hose and possibly use bicycle rubber bands.

[Mad Max]

I air my hose up to the same pressure I'm going to use and put the ends under water in a bucket

[Shredd]

 Buddy...   What air pressure are you using?? 

     If you are worried about a resin starved joint you can try adding a filler...  A filler will help to keep a little space between the joints... 

If the epoxy is thin it could also soak into the wood...  You may try gluing everything up, put it in the form...  Put 5 to 7 psi in your hose and wait until the resin starts to thicken before you air up to full pressure...

   Just some ideas...  You may have to experiment to see what works best for you....

[buddyb]

I like to use 40-50lbs, depending on the bow.

[Shredd]

Nice...   40# is plenty...  I use just under 40#...   

[skeaterbait]

Is there an advantage of G-2 over other epoxies?

[Flem]

G-2 was made for greasy wood, aka expensive, exotic wood used in marine applications.

[skeaterbait]

Thank you sir. That leaves me out 

[Flem]

You can use it on other woods than expensive ones. Its good adhesive. Not many unmodified epoxies have the same amount of elongation as G-2.