Hay all,
Do any of you know if this stuff will bond to PVC?
I’d like to know because the China-mart near me has it on clearance for 10 cents a pop!
Thanks.
Clearance Epoxy
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judgment_arms
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Matt221985
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china mart? lol, is that a real store?
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homedepotpro
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i would not put my well being on discount china-mart epoxy
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judgment_arms
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I call wall-mart, china-mart because every thing there is from china.
Well, I already got five of them; maybe I’ll try it and see.
Well, I already got five of them; maybe I’ll try it and see.
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boilingleadbath
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If?
I'm pretty certain it will.
On the other hand, it may only have a 1,000 psi bond strength - or something like that... so you may not want to use it to epoxy fittings together.
Not that that changes anything, because we don't advocate that use anyways.
I'm pretty certain it will.
On the other hand, it may only have a 1,000 psi bond strength - or something like that... so you may not want to use it to epoxy fittings together.
Not that that changes anything, because we don't advocate that use anyways.
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judgment_arms
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Well I need something to plug the end of a piece of pipe from the inside. It woulcd not be under constant pressure, only for a short amount of time. Think of it as a breach block.
Would it work for that?
Would it work for that?
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boilingleadbath
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we need dimensions of the scenario:
Diameter of the pipe
Length of the epoxy plug
Pressure
Diameter of the pipe
Length of the epoxy plug
Pressure
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judgment_arms
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Okay then,
Pipe diameter = 1.5
Plug length = as much as necessary for safety.
Pressure = 120 max PSI
Pipe diameter = .75
Plug length = see previous, but no more than half an inch.
Pressure = 200 max PSI
Pipe diameter = 1.5
Plug length = as much as necessary for safety.
Pressure = 120 max PSI
Pipe diameter = .75
Plug length = see previous, but no more than half an inch.
Pressure = 200 max PSI
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boilingleadbath
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If we presume those are .75" and 1.5" nominal (.802" and 1.59" actual inside diameter)...
1.59<sup>2</sup>* pi/4 * 120<sub>psi</sub> = 240<sub>pounds</sub>
240<sub>pounds</sub> * 3<sub>safety factor</sub> / (1000<sub>psi</sub> * 1.59*pi) = .14"
.802<sup>2</sup>* pi/4 * 200<sub>psi</sub> = 101<sub>pounds</sub>
101<sub>pounds</sub> * 3<sub>safety factor</sub> / (1000<sub>psi</sub> * .802*pi) = .12"
A couple notes:
1) These are thin enough that their strength as a flat plate may be lower than their ability to stay glued in the pipe... increasing their thickness would not hurt.
2) Required glue contact area (the values I calculated) scales liniarly with pressure.
3) A higher safety margin - like 6 or 10 - wouldn't hurt.
1.59<sup>2</sup>* pi/4 * 120<sub>psi</sub> = 240<sub>pounds</sub>
240<sub>pounds</sub> * 3<sub>safety factor</sub> / (1000<sub>psi</sub> * 1.59*pi) = .14"
.802<sup>2</sup>* pi/4 * 200<sub>psi</sub> = 101<sub>pounds</sub>
101<sub>pounds</sub> * 3<sub>safety factor</sub> / (1000<sub>psi</sub> * .802*pi) = .12"
A couple notes:
1) These are thin enough that their strength as a flat plate may be lower than their ability to stay glued in the pipe... increasing their thickness would not hurt.
2) Required glue contact area (the values I calculated) scales liniarly with pressure.
3) A higher safety margin - like 6 or 10 - wouldn't hurt.
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iknowmy3tables
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that pipe is kinda big to be pluging with epoxy, you should use pvc parts, it you have a lathe try pluging that 1.5"pvc with part of a sanded 1" end cap and the 3/4"pvc with a .5" cpvc end cap