Water-Resistant Outerwear DWR Finish (PFAS Transition, C6 vs C0) — safety profile
Low riskDurable Water Repellent (DWR) finishes on outdoor jackets, pants, and gear have historically used PFAS-based chemistry: C8 (PFOA-based, phased out by 2015), C6 (shorter-chain PFAS, current industry standard — still persistent, less bioaccumulative), and emerging C0/PFC-free alternatives (silicone, wax, dendrimer-based).
What is this product?
Durable Water Repellent (DWR) finishes on outdoor jackets, pants, and gear have historically used PFAS-based chemistry: C8 (PFOA-based, phased out by 2015), C6 (shorter-chain PFAS, current industry standard — still persistent, less bioaccumulative), and emerging C0/PFC-free alternatives (silicone, wax, dendrimer-based). Gore-Tex transitioned to PFC-free ePE membrane (2023). Major brands (Patagonia, Arc'teryx, The North Face) committed to PFAS-free DWR by 2025-2027. C0 alternatives: comparable initial water repellency but may require more frequent reapplication. PFAS in DWR contributes to environmental forever chemical burden.
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Dwr Chemistry
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