How much pressure can this safely hold?

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Jose Arcadio Buendia
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Wed Dec 25, 2013 8:28 am

How much pressure can this safely hold?
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I heated one side of a 3/4" sch 40 PVC coupling and inserted a soda bottle cap. After it cooled I took out the cap and applied epoxy to the coupling and cap.
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PeteS
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Wed Dec 25, 2013 9:02 am

Not sure, but I will say that I have mixed results with epoxying PVC. It helps if you roughed up the PVC pretty well.

That aside I bet it would be pretty strong, but would avoid standing behind it.
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jackssmirkingrevenge
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Thu Dec 26, 2013 7:15 am

This one with a similar joint was used to 100 psi without failure, but it does depend on the quality of epoxy used and part preparation.

I've also shot at closed water-filled soda bottles and the overpressure was enough to pop the cap off its threads.
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