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I can't find any citations on this but I feel like I read that it might have something to do with the toxicity of the DWR used? Does that sound crazy? The presence of PFAS might've been the issue. Maybe.
Edit: this might've been why? https://toxicfreefuture.org/press-room/gore-tex-manufacturer-announces-availability-of-new-pfas-free-membrane-but-still-uses-forever-chemicals-to-make-its-outdoor-apparel-and-gear/
And here:
https://www.gore-tex.com/sustainability/protect-the-planet/reduce-chemical-impacts
'Gore has identified a group of PFCs as being of environmental concern. These PFCs of Environmental Concern (PFCEC) are highly fluorinated, small enough to be bioavailable, and persistent. Although not all PFCs of Environmental Concern are hazardous, they do have the potential to become widely dispersed in water, where they will remain for multiple generations. Therefore, Gore Fabrics has established goals to eliminate them from the life cycle of our consumer fabrics products.'
Yeah, pretty sure that they actually put their money where their mouth is - somewhat - and this is why it was discontinued.
JB-
That rings a bell yeah, I think you're right
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If anyone is interested in this PFC’s/PFOA topic, there’s some more info and links in the Production / Ethics thread, scroll through for links, info
With the specific problem on a physics level here;
https://www.lfgss.com/comments/16196257/It’s been a longtime coming that this topic is now acknowledged.
PhilDAS
Chopsicle
I'm not sure of the reasoning tbh, I'm no longer in the industry. They initially said they were discontinuing it from 2024 or something but then suddenly changed their mind and dropped it immediately.