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poly to pvc?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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poly to pvc?

Unread postAuthor: experament-u2 » Tue May 22, 2007 8:31 am

ok to the point is it safe to glue poly pipe with pvc fittings im talking using ether pvc glue or epoxy to do it. would this be safe?
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Unread postAuthor: Hotwired » Tue May 22, 2007 8:48 am

For various reasons poly pipe is connected with fusion welds and mechanical connections.

I don't think PVC solvent will work properly if at all on poly pipe.

Epoxy might work, good idea to test on small bits first.
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Unread postAuthor: cdheller » Tue May 22, 2007 9:49 am

Hotwired wrote:For various reasons poly pipe is connected with fusion welds and mechanical connections.

I don't think PVC solvent will work properly if at all on poly pipe.

Epoxy might work, good idea to test on small bits first.


^
+1



You have a size issue inbetween the two (u.s.) .

poly,cpvc, copper are one size pvc ,,i.p.s(iron pipe size ) is another set of sizes and standards
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Unread postAuthor: experament-u2 » Tue May 22, 2007 9:54 am

the poly pipe i am talking about is the exact same od as normal 20mm pvc
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Unread postAuthor: boilingleadbath » Tue May 22, 2007 4:40 pm

I'm not certain, but I believe the term "poly" is reserved for polyethylene pipe. (check this for me, it's your question)

Epoxy won't grab PE, and it's not effected by solvents, so you'll have to use mechanical fasteners.
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Unread postAuthor: rna_duelers » Wed May 23, 2007 2:52 am

You can get hold of threaded poly pipe.The threads are BSP,the same used in PVC pipes and all other pipe fittings so just get some threaded sections you can join.
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Unread postAuthor: Marco321 » Wed May 23, 2007 6:03 am

Yeah, boilingleadbath is correct, polly in that context is short for pollyethylene or polyethane, depends what you want to call it. and he is again right, epoxy wont hold it, on the back of epoxy it says wont bond polyethane/polyethelyne and i think another alkane monomer.
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Unread postAuthor: Insomniac » Thu May 24, 2007 2:05 am

You can use epoxy to glue it if it has threads. Then it is more of a mechanical join, rather than a chemical one.
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