Are Teflon seats O2 comptable?

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scubaalblake

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I am servicing an old Oceanic PX2 (piston reg = Scubapro Mk5 clone) for an oxygen deco reg (100%).
Very simple reg with very few orings- all of which I have managed to obtain in viton.
Does anyone know if SCubapro HP seats are oxygen compatible?
The older seat material was white - looks like Teflon which would make sense.
Does anyone know if Teflon HP seats are ok with 100%.
A quick google found some plumbing/gas specs that says Teflon tape is ok on oxygen fittings…..so I’m assuming its ok as a seat?

New seats are ‘greyish’ - dont know if they are still teflon or not?
 
https://www.shearwater.com/products/teric/

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