Mini combustion electrode sealing

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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Bluetooth
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Fri Dec 22, 2006 2:40 pm

For a combustion launcher what should i use to seal the electrodes? I already tapped the holes but i still want to make sure it's air tight and so the electrodes don't shoot out. Epoxy or super glue maybe? If super glue will work i would like to use that because i don't want to go out to home-cheapo to
buy some epoxy. Thnx in advance :D .
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Flying_Salt
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Fri Dec 22, 2006 2:44 pm

I used caulk on mine, worked pretty well, but you have to make sure not to move it while it's drying.
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PVC Arsenal 17
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Fri Dec 22, 2006 2:45 pm

Epoxy should do just fine. If you have JB Weld use that. That stuff is super-epoxy.

Super glue (CA, cyanoacrylate) is brittle, and doesn't bond well with most plastics.
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Bluetooth
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Fri Dec 22, 2006 2:59 pm

What about surf board patch epoxy? Like ding-all.
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frankrede
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Fri Dec 22, 2006 3:06 pm

how bout teflon?
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Bluetooth
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Fri Dec 22, 2006 3:25 pm

I need to reinforce them to not just seal them.
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noname
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Fri Dec 22, 2006 4:01 pm

Just use hot glue. Fast, easy, bonds to prety much everything, and is airtight.
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mark.f
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Sat Dec 23, 2006 9:23 am

Just use a neoprene washer under the head of the machine screw, and then screw on a hex self-sealing nut, (have a ring of rubber on the inside on one side) from the inside of the gun to re-inforce.
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