bonding to teflon
bonding to teflon
(OP)
I am looking into a modification on an existing product what will require bonding on unprepared PTFE clad acrylic fibers? Etching or corona discharge unfortunately are out due to the assembly but I may be able to use other more tame cleaning methods prior to application? The other bonding element is a two part epoxy. any thoughts (other than nothing really bonds with teflon well)?





RE: bonding to teflon
OR
Run a vacuum impregnation cycle before the epoxy cures.
... Either way, you _might_ get a slightly better mechanical bond, by causing the epoxy to infiltrate the flaws and pores in the teflon.
Don't expect miracles.
Mike Halloran
Pembroke Pines, FL, USA
RE: bonding to teflon
Primers for Cyanoacrylate adhesives.
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Look at B-46-Cat and B-46TH
http://www.reltekllc.com/adhesives-coatings.html
You might want to look up information on Teflon fibers as there has been a lot of work with them. Our research group did a lot work in that area but I don't have access to their work.
RE: bonding to teflon
Have You looked at SAE AMS2491 "Surface Treatment of Polytetrafluoroethylene Preparation for Bonding"?
Regards, Wil Taylor
RE: bonding to teflon
We're also going to run some tests with thin epoxy and a vacuum pump to see if we can draw it down into the voids that exist.
RE: bonding to teflon
kch
RE: bonding to teflon
RE: bonding to teflon
http://www.reltekllc.com/index.html