DWR Water‑Repellent Coating: Fluorinated vs. Fluorine‑Free – How Much Do They Differ in Performance and Environmental Impact?
2026-08-13
C8 vs C6 vs Fluorine‑Free DWR: Performance, Environment & the Future
A clear comparison from ON THE WAY – with maintenance insights
The waterproof performance of a hardshell jacket consists of two layers: an inner waterproof membrane that blocks liquid water from penetrating, and an outer DWR (durable water repellent) coating that causes rain to bead up and roll off. When the DWR coating fails, the fabric surface becomes “wetted out,” reducing breathability and creating a clammy, cold feeling—even though the interior remains dry.
However, DWR itself is evolving. From C8 to C6 to fluorine‑free (C0), each upgrade involves a trade‑off between performance and environmental responsibility. As a professional waterproof‑breathable gear brand, ON THE WAY presents a table that clearly distinguishes these three types of DWR.
I. Quick Overview: What Are C8, C6, and Fluorine‑Free (C0)?
II. Core Comparison: Performance & Environmental Impact (Three Tables)
Table 1: Water‑Repellency Effect & Durability
Table 2: Environmental & Health Impact
Table 3: Maintenance Cost
III. Why Do These Differences Exist?
DWR works by lowering the surface energy of the fabric so water molecules cannot spread and instead bead up and roll off. Fluorinated compounds (C8, C6) excel at this—especially C8, which delivers the best and most stable performance.
The trade‑off is that fluorinated DWR belongs to the PFAS family (per‑ and polyfluoroalkyl substances), often called “forever chemicals.” They can persist in the environment for thousands of years and accumulate in humans and wildlife.
Because C8’s fluorine content exceeds EU limits, it has been banned. The industry shifted to C6, but new research indicates C6 is also harmful. Today, brands such as Patagonia have announced that, starting with the 2025 winter season, all products will use fluorine‑free DWR. California and New York State also prohibit the sale of PFAS‑containing textiles effective January 1, 2025.
IV. ON THE WAY’s DWR Selection Criteria & Future Direction
ON THE WAY continuously monitors DWR technology developments. Our selection is guided by three principles:
- Compliance First – Strictly adhere to EU REACH regulations and all national PFAS bans; we avoid any fluorinated treatment that is already banned or slated for restriction.
- Performance Balance – Seek the optimal compromise between eco‑friendliness and practical usability. Although fluorine‑free DWR typically needs more frequent re‑spraying, we mitigate durability gaps through fabric‑structure optimization and advanced finishing processes.
- User Education – Proactively inform consumers about proper DWR care so they understand that regular re‑spraying is normal maintenance, not a sign of product failure.
Future Roadmap:
- Gradually eliminate C6‑based fluorinated DWR in favor of fluorine‑free/PFAS‑free alternatives.
- Actively test next‑generation fluorine‑free technologies (e.g., Empel™ molecular‑level bonded DWR) to find higher‑performing, environmentally sound substitutes.
- Clearly label the DWR type on each product to enable informed consumer choice.
V. How Should Consumers Choose?
“DWR is never a one‑time fix—whether fluorinated or fluorine‑free, it diminishes with use and washing. The difference lies in the rate of decline: fluorinated coatings fade slower but at an environmental cost; fluorine‑free coatings wear faster but are far safer. ON THE WAY chooses the latter and teaches you how to maintain it.”
About ON THE WAY
ON THE WAY is a Chinese manufacturer and brand specializing in waterproof‑breathable outdoor gear, with over 15 years of industry experience. We track DWR advancements closely, progressively shifting our products from C6‑based fluorinated treatments to fluorine‑free/PFAS‑free solutions while providing clear DWR‑care instructions. Our product line includes hardshell jackets, cycling rainwear, and work‑wear waterproof shells, supporting OEM/ODM and private‑label customization.
We welcome inquiries from brands, clubs, and corporate customers.
—No compromise on sustainability; no concession on performance.
Frequently Asked Questions (FAQ)
Q1: What is the difference between C8, C6, and fluorine‑free DWR?
C8 and C6 are fluorinated coatings with excellent water and oil repellency, but they contain PFAS (“forever chemicals”) and are being banned. Fluorine‑free (C0) uses hydrocarbon or silicone‑based chemistry; it is more environmentally friendly but requires more frequent maintenance.
Q2: Is C6 DWR safe?
C6 is currently allowed in many regions, but research shows it is also a PFAS compound with potential health and environmental risks. It is being phased out; many brands are moving to fluorine‑free alternatives.
Q3: How do I maintain a fluorine‑free DWR jacket?
Wash with technical detergent, tumble dry on low heat to reactivate the DWR, and re‑apply a spray‑on DWR treatment every few washes (or when water no longer beads). Expect more frequent care than with fluorinated coatings, but it’s safer for you and the environment.
Q4: Does ON THE WAY already use fluorine‑free DWR?
Yes. ON THE WAY is progressively transitioning its entire product line to fluorine‑free/PFAS‑free DWR treatments, in line with EU regulations and industry best practices. All new products clearly label the DWR type.
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