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Sealing a 1'' pipe
Posted: Tue May 05, 2009 5:08 pm
by maverik94
Ok, a simple question. For my spring piston prototype, I need a 1" pvc piston, it pretty much needs to be filled with something that will make it airtight, so no air leaks out of the piston. Thanks!
Posted: Tue May 05, 2009 5:26 pm
by jonnyboy
Seriously!? 3 different topics for something that could be put in one?
Epoxy
Posted: Tue May 05, 2009 5:27 pm
by Biopyro
In before JSR - Epoxy? Edit: beaten to it!
Also try PU expanding foam, polymorph, melted plastic bags.
What sort of properties were you after?
Posted: Tue May 05, 2009 5:56 pm
by maverik94
sorry for the multiple posts. Well, it just needs to be airitight, strong, and cheap. What kind of epoxy?
Posted: Wed May 06, 2009 11:31 am
by Biopyro
Putty or resin will be fine. There is a post in the how-to database explaining the whole process.
Posted: Wed May 06, 2009 2:19 pm
by covey12
just get jb weld, or that expoxy that comes with both parts in one plunger
Posted: Wed May 06, 2009 2:34 pm
by Hubb
I took a section of the pipe to a hardware store and bought a wooden dowel that fit in it. It was just a little bit small, and this gap was fixed with some duct tape...assuming that all you need is a good fitting piston.
Posted: Wed May 06, 2009 2:39 pm
by Technician1002
hubb017 wrote:I took a section of the pipe to a hardware store and bought a wooden dowel that fit in it. It was just a little bit small, and this gap was fixed with some duct tape...assuming that all you need is a good fitting piston.
If the fit is very close a few layers of Polyurethane varnish may do the trick.
Posted: Wed May 06, 2009 2:56 pm
by maverik94
ok, I understand how to do that. Thanks yall!