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Mini combustion electrode sealing

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Mini combustion electrode sealing

Unread postAuthor: Bluetooth » 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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Unread postAuthor: Flying_Salt » 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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Unread postAuthor: PVC Arsenal 17 » 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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Unread postAuthor: Bluetooth » Fri Dec 22, 2006 2:59 pm

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

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

I need to reinforce them to not just seal them.
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Unread postAuthor: noname » 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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Unread postAuthor: mark.f » 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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