P-Line · Fishing Line
P-Line C21 Copolymer Line
Lower concern for typical use; fishing line is not a known PFAS application, but no public brand disclosure exists.
P-Line C21 Copolymer Line is a nylon-based fishing line with no known PFAS treatment or coating typical to the category. The brand makes no public PFAS claims or disclosures.
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Copolymer fishing line (nylon-based)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
P-Line C21 is a nylon-based copolymer line, meaning it blends multiple nylon polymers to balance strength, stretch, and knot retention. Copolymer fishing lines are engineered to avoid the brittleness of pure monofilament nylon while maintaining low memory (reduced coiling). Unlike braided lines, it does not shed microfibers into water during normal use, and nylon copolymers do not leach monomers or additives into freshwater or saltwater at ambient temperatures.
The brand's record and disclosure
P-Line is a legacy fishing tackle brand (part of the Berkley/Rapala group) with no public safety recalls, certifications, or disclosure statements about chemical additives in their C21 line. The company does not publish material safety data sheets or third-party testing results for fishing line. No controversies or regulatory actions regarding contamination have been reported for P-Line products.
How it compares in its category
Copolymer lines sit between budget monofilament and premium fluorocarbon or braided options. C21 is a mainstream choice with a long market history and reputation for durability in freshwater and light saltwater. Compared to older monofilament formulations, modern copolymers like C21 are less prone to UV degradation and do not require special storage protocols, making them lower-maintenance than fluorocarbon alternatives.
If you buy it
Store spools in a cool, dry place away from direct sunlight to slow nylon polymer aging. Replace line every 1-2 seasons or after visible wear (discoloration, brittleness, or reduced knot strength). Nylon does not degrade significantly in water and can be safely discarded in standard waste or recycled through specialty programs that accept fishing line. Avoid exposing it to heat above 80°C, though typical casting and reeling poses no thermal risk.
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 polymer degradation and microparticle release
Over time and with UV exposure, nylon fishing line can fragment into small particles; this is an environmental concern rather than a direct consumer hazard, but degraded line should be replaced promptly.
Colorants and UV stabilizers in polymer formulation
P-Line C21 contains proprietary dyes and likely UV absorbers typical of nylon fishing lines. No published data or recalls suggest leaching or toxicity from these additives during normal use in water or storage.
Thermal instability under extreme heat
Nylon copolymers melt around 200-260°C. Normal fishing (ambient temperature, air drying) poses no risk; only prolonged direct heat exposure (e.g., car interior in sunlight) could soften the line, but this does not release hazardous gases or residues.
Heavy metals in additives
No reports or evidence of lead, cadmium, or other heavy metals in P-Line C21 formulation. Nylon copolymers do not require heavy metal stabilizers as a class.
Skin or eye irritation from contact
Nylon line is inert and does not cause irritation from contact with skin or eyes. Sharp edges from cut line can cause mechanical injury but are not a chemical hazard.
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 Line
Stren
Original
Monofilament nylon fishing line
Lower PFAS concern for a fishing line product; no coating or treatment typical of PFAS carriers.
⚠Risky category by default
Maxima
Ultragreen One Shot
Lubricant/chain oil (mineral or synthetic base)
Lower PFAS concern for a chain lubricant; minimal Teflon-family coating/waterproofing risk profile.
⚠Risky category by default
Seaguar
Blue Label
Fluorocarbon fishing line (monofilament)
Fluorocarbon fishing line may contain PFAS; insufficient public data to grade definitively.
⚠Risky category by default
More fishing line 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.