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Anything better then JB weld

Posted: Mon Oct 01, 2007 3:28 pm
by socoj2
I find that i have to put several fittings into pvc Caps, and i use JBweld on the inside and the outside.

Only thing is, its A. A pain to mix it. B. a Bigger paint to make sure you have enough hardening compound that it hardens properly.

So is there some other epoxy, that is easier to apply and capable of <150 PSI

Posted: Mon Oct 01, 2007 3:32 pm
by Pete Zaria
Almost any commercial epoxy will hold 150psi no problem. Adralite is a common marine epoxy and I've seen it hold 300+ psi.

Look around your local hardware store, try marine shops, etc... Some of it is single-phase and some of it you have to mix.

JBweld is really intended to be used in applications that require a metallic bond. People have told me it shouldn't have worked, but I fixed a cracked cylinder head on my lawnmower with jbweld and it still runs fine... :)

Peace,
Pete Zaria.

Posted: Mon Oct 01, 2007 3:37 pm
by battlemonkey
where do you live?
i use ados pvc cement. no mixing just paint it straight on whatever your gluing

Posted: Mon Oct 01, 2007 4:15 pm
by silverdooty
no, there is nothing better than j-b weld.

way back in 1969 i was hotrodding around in my father's '65 mustang, i cracked the block of the 289. oops. the car sat for 5 yrs. before anything was done to it. my father came across some j-b weld and fixed the block. my father is long gone but the mustang still runs and the engine has not been replaced. just broke 175K miles this summer.

Posted: Mon Oct 01, 2007 4:17 pm
by MrCrowley
battlemonkey I hope you are using primer with the cement.

Posted: Mon Oct 01, 2007 4:38 pm
by battlemonkey
yes as allways. the one time ive had a cannon blow up was when my dad said that it dryed straight away as a joke (was my first cannon) naturaly it got to 40 psi then sepated and put a hole in the garage wall

Posted: Mon Oct 01, 2007 4:43 pm
by potatoflinger
That was one pretty mean joke, could have really hurt you.

Posted: Mon Oct 01, 2007 5:47 pm
by f.c
you're dad sounds like a crazy bloke. and if i where u i would use pvc primer and cement. it is actually cheaper than epoxy in the long run.

Posted: Mon Oct 01, 2007 9:34 pm
by singularity
i have had tremendous success with devcon epoxy putty. i had a high stress joint on a vortex fail when using jb weld, put some epoxy putty in its place and it hasn't given me any trouble. i have played about 10 games with it and smashed it into a bunch or trees and shrubs and still hasn't failed.

Posted: Mon Oct 01, 2007 10:43 pm
by benstern
silverdooty wrote: way back in 1969 i was hotrodding around in my father's '65 mustang, i cracked the block...
I think you are now the oldest person on spudfiles.

Posted: Mon Oct 01, 2007 11:18 pm
by spudgunnerwryyyyy
Epoxy in the 2 syringes next to each other is easy and has 2400psi bond pressure. I use it to seal cracks in pistons.

Posted: Tue Oct 02, 2007 2:10 pm
by battlemonkey
yeh that was pretty crazy f.c but i dont think that he actualy though i was going to test then and there. i could have blown a part anyway at higher pressure as we later found out there was some weird stuff on the 3in end cap that was stopping the pvc setting.