Small piston sealing face

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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Lockednloaded
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I am making a mini coax at the moment, but my piston is in dire need of a sealing face. I have a solid teflon piston, and was wondering is one of those "LiveStrong" type rubber bracelets like This would work well as a sealing face
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D_Hall
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Properly machined, the teflon itself should provide a nice sealing face.
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Lockednloaded
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um... well the piston is made of teflon tape not solid machinable teflon. it is wrapped and compacted into a cylindrical shape, kinda ghetto, but it works for such a small piston.
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psycix
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wrapped and compacted into a cylindrical shape
:shock: I'm not sure if that will hold together...
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Technician1002
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A solid piston is highly recommended. The bracelets are soft, but not flat. Getting a seal to fill the cannon is difficult. If it seals the pressure may cut it. I would recommend using a faucet washer instead.
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tghhs
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How small are we talking?
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