Rag and Bone
Well-known member
The nylon hose connectors in my aerated AP bucket melted. It made a huge sticky mess and the gold foils are sticking to it. I suspect the nylon would not hold up in other acids. Just a heads up....
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Bullion.Forum
Don't Use Nylon With AP
- Thread starter Rag and Bone
- Start date
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Rags,
Teflon tubing and fittings is the way to go.
Steve
Teflon tubing and fittings is the way to go.
Steve
Just figured I'd mention this:
anyone wanting to get Teflon tubing should recall that Teflon is really PTFE, PFA, and FEP polymers, it's a blanket term. PTFE is a crappy, stiff tubing. PFA is slightly better, but FEP is the best for when you need flexibility and clarity. I like it the most. There are many fluoropolymers, but only a few have the properties we would like to have.
What you all want is FEP tubing; similar chemical inertness, but it's clear and flexible. I'll try and find a reasonable source, usually it's expensive.
For now, try
http://www.texloc.com/tube_fep.html
or cole parmer. VWR may have it too.
I had a really good source for all sorts of fluoropolymer products, they were so cheap! I wish I could find them again or at least remember their name. I'll have to look for an old invoice.
Lou
anyone wanting to get Teflon tubing should recall that Teflon is really PTFE, PFA, and FEP polymers, it's a blanket term. PTFE is a crappy, stiff tubing. PFA is slightly better, but FEP is the best for when you need flexibility and clarity. I like it the most. There are many fluoropolymers, but only a few have the properties we would like to have.
What you all want is FEP tubing; similar chemical inertness, but it's clear and flexible. I'll try and find a reasonable source, usually it's expensive.
For now, try
http://www.texloc.com/tube_fep.html
or cole parmer. VWR may have it too.
I had a really good source for all sorts of fluoropolymer products, they were so cheap! I wish I could find them again or at least remember their name. I'll have to look for an old invoice.
Lou
Bernie Foley
Well-known member
Hi all,
Nitric melts nylon real quick! always test acids on plastics! Take Lou&Steve's advise teflon and maybe silicone are probly best!!
Have a great day! Bernie
Nitric melts nylon real quick! always test acids on plastics! Take Lou&Steve's advise teflon and maybe silicone are probly best!!
Have a great day! Bernie
