I wasn’t too clear but I kind of switched topic from the membrane to the DWR coating to give an adjacent example of how the industry has approached reducing PFCs.
ePE refers to a replacement of the ePTFE membrane (which, in a 3 layer piece, is sandwiched between the liner and outer shell). That’s not what I’m referring to.
What I’m referring to is the DWR coating on the outer shell (that keeps the membrane from “wetting out”). Traditionally it was PFCs but there are non-PFC options now
ePE refers to a replacement of the ePTFE membrane (which, in a 3 layer piece, is sandwiched between the liner and outer shell). That’s not what I’m referring to.
What I’m referring to is the DWR coating on the outer shell (that keeps the membrane from “wetting out”). Traditionally it was PFCs but there are non-PFC options now
The ePE membrane sounds cool though, if it works