PBT Chemical Resistance to 5 percent acetic acid solution
PBT Chemical Resistance to 5 percent acetic acid solution
(OP)
I have a food contact application and want to use PBT @ .8 mils. The application is a pickle jar closure. Predictive test protocol demands placing the closure in a 212F five percent acetic alcohol / two percent NaCl solution, then allowing to cool to 120F for thirty days. Will PBT survive.





RE: PBT Chemical Resistance to 5 percent acetic acid solution
From memory, manufacturers are:-
GE/Sabic with Valox
Bayer with Pocan
DSM with Arnite T
Ticona with ? (Maybe Duranex or Hostadur)
BASF with Ultradur.
DuPont with Crastin
There are more, but they escape my mind now.
Regards
Pat
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RE: PBT Chemical Resistance to 5 percent acetic acid solution
also thee people that supply you with cap liners should be able to tell you right off.
RE: PBT Chemical Resistance to 5 percent acetic acid solution
Certainly PET has excellent resistance to acids, up to and including boiling strong sulphuric. I presume but have not confirmed PBT is similar.
I also expect PP would work for this and wonder why PBT is specified.
Regards
Pat
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