Stren · Fishing Line
(3 pack) Stren Original Monofilament Fishing Line, Lo-Vis Green, 10 lb Test Strength, 300 yd, Size: 10 lbs
Lower-concern commodity product with no known PFAS treatment; fishing line typically does not require water-repellent coating or stain resistance coatings.
Stren Original is a basic monofilament nylon fishing line with no disclosed coating or finish known to contain PFAS. Fishing line in general is not a product category commonly treated with fluorochemicals, nylon's inherent water resistance is sufficient.
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Monofilament nylon fishing line
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
Stren Original is extruded monofilament nylon (likely nylon 6 or 6,6), a single continuous polymer filament with no coating, dye, or treatment layers. The 'Lo-Vis Green' color is achieved through pigment or dye incorporation during the extrusion process. Monofilament has inherent UV resistance from stabilizers in the polymer matrix itself; no water-repellent or stain-resistant surface treatments are needed or typically applied to fishing line, eliminating the primary route for PFAS contamination in this product category.
The brand's record and disclosure
Stren (Newell Brands) does not publicly disclose detailed material safety or PFAS testing results for fishing line products. However, there are no documented recalls, safety complaints, or regulatory violations specific to Stren monofilament line concerning toxic substance migration or contamination. The brand maintains a standard market position in commodity fishing tackle with no known controversies regarding chemical composition.
How it compares in its category
Monofilament nylon fishing line is the most widely used and chemically straightforward category of fishing line. Alternatives include braided polyester or nylon lines (which may have coatings increasing theoretical hazard complexity) and fluorocarbon lines (also inert thermoplastics). Standard monofilament like Stren Original represents the lowest-complexity, lowest-additive option in the category, with no special coatings or treatments that would introduce contaminants.
If you buy it
Store spools in a cool, dry place away from direct sunlight to slow UV degradation of the nylon. Replace line if it becomes discolored, brittle, or loses strength (typical lifespan 1-3 years depending on use and storage). Do not expose to extreme heat (above 80 degrees C / 176 F sustained) as nylon softens and becomes weak. After use in saltwater, rinse with fresh water to remove corrosive residue from guides and reels, not because the line itself leaches.
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.”
UV degradation and microfiber shedding
Nylon monofilament degrades under prolonged UV exposure, becoming brittle and potentially fragmenting into microfibers. No data exists on whether Stren Original sheds microplastics at higher rates than competitors, but all monofilament lines carry this inherent risk if stored or used in high-UV environments for extended periods.
Heavy metal dyes or pigments in green colorant
The 'Lo-Vis Green' color could theoretically incorporate cadmium or lead-based pigments in industrial nylon extrusion, but no published recalls, test data, or regulatory findings identify this as a problem in Stren products or monofilament fishing line generally. Modern commercial dyes are typically azo or triphenylmethane-based, which do not migrate significantly into water during normal use.
Monomer or oligomer leaching from nylon
Nylon polymers can release small amounts of residual monomers (caprolactam for nylon 6) or oligomers into water, particularly if the line is new or in warm/acidic conditions. For fishing line in contact with water, this leaching rate is likely minimal due to the surface-area-to-volume ratio and short exposure times, but cumulative risk is unquantified.
Thermal stability and fume risk during extrusion manufacturing
End-users do not face extrusion fume exposure; consumer risk from this hazard is absent. Nylon extrusion does not require Teflon-type coating (Teflon) coatings or high-temperature Teflon-family coating handling, so the fume hazard relevant to some cookware does not apply.
Ingestion risk if swallowed (choking/GI obstruction)
While not a chemical hazard, monofilament line poses a documented mechanical hazard if ingested by humans or animals. This is a use and storage responsibility rather than a manufacturing defect. Keep out of reach of children and pets, and dispose of cut scraps carefully.
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.