I know Nitrile (NBR) is usually recommended for normal seawater sealing applications. I have a job that will be unserviced for 20 years, at ~2000 psi, 2 degrees C.
Nitrile or EPDM? A few sources tout EPDM as better for seawater but most dont.
and 70 duro or 90 duro?
They are all titanium...