Suffix · Fishing Gear & Equipment
Sufix Defcon FC Copolymer Fishing Line
Lower concern. Standard nylon fishing line without known PFAS.
Sufix Defcon FC is a nylon copolymer monofilament with no disclosed PFAS treatment or coating. Fishing line materials typically pose lower PFAS risk than coated or waterproofed goods.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Copolymer monofilament (nylon-based)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Sufix Defcon FC is a nylon-based copolymer monofilament, meaning it blends two nylon polymers to improve strength, abrasion resistance, and handling compared to pure monofilament. Copolymer nylon is thermoplastic and does not degrade into microplastics under normal fishing conditions (cold freshwater or saltwater). The material itself is chemically inert in contact with water and food fish; no leaching of additives into water or catch is documented for this product class.
The brand's record and disclosure
Sufix (owned by Rapala) does not publicly disclose detailed chemical composition, manufacturing certifications (ISO, FDA), or third-party testing for fishing line products. No recalls, contamination incidents, or regulatory warnings are on record for Defcon FC. The brand is silent on PFAS use, which is typical for fishing line manufacturers; standard nylon formulations do not inherently require PFAS, though some brands add it for water repellency.
How it compares in its category
Copolymer fishing lines sit between cheap monofilament (pure nylon, more brittle) and premium fluorocarbon or braided alternatives (higher cost, different durability profiles). Defcon FC is mainstream for recreational fishing and carries no known advantage or disadvantage in safety profile versus competitors like Berkley or Trilene at the same price point. Fluorocarbon alternatives (e.g., Seaguar) are chemically similar but opaque underwater; copolymer is transparent, which is the main functional trade-off.
If you buy it
Store in cool, dry conditions away from direct sunlight, as UV exposure degrades nylon over months. Replace line annually or after visible damage (fraying, discoloration, brittleness), as weakened line can snap and leave microplastics in water. Do not heat or melt the line intentionally. After use in saltwater, rinse spools with fresh water and dry fully to prevent salt crystallization and bacterial growth in guides; this is maintenance hygiene, not a chemical safety issue.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Nylon degradation and microplastic shedding
Copolymer nylon will eventually fragment under UV exposure, mechanical wear, and age. In normal catch-and-release fishing, shed line fragments are small but persistent in aquatic environments. Defcon FC has no documented mitigation strategy (biodegradable additives, UV stabilizers) beyond standard nylon formulation.
Heavy metals in additives (colorants, UV absorbers)
Sufix does not disclose whether Defcon FC uses heavy metal pigments (cadmium, lead) in its blue or black colorants, or antimony-based UV absorbers in the resin. Standard nylon fishing line typically uses organic dyes or non-toxic inorganic pigments, but no third-party testing of Defcon FC is on record.
Thermal degradation during manufacturing or storage
Nylon copolymer is extruded at high temperature; if manufacturing controls are poor, thermal breakdown can release volatile amines and formaldehyde traces. No quality complaints or odor issues are documented for Defcon FC, suggesting adequate thermal management.
Bacterial or mold growth on wet spool
If stored wet or in humid conditions, nylon itself does not biodegrade, but bacteria and mold can colonize the spool and line surface. This is a hygiene issue (algae smell, potential pathogens on hands) rather than chemical hazard, but relevant to storage practice.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Fishing Gear & Equipment
Penn
Senator Combo
Fiberglass rod, conventional reel components
Fishing rod combo; no typical PFAS concern, but no disclosure.
✓Bare metal or glass, no coating at all
More fishing gear & equipment grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.