Trilene · Fishing Line
Berkley Trilene Sensation
Lower concern, standard monofilament line lacks typical PFAS use cases, but no brand disclosure confirms it.
Berkley Trilene Sensation is a monofilament nylon fishing line with no known water-repellent or non-stick coatings that typically trigger PFAS use. The brand makes no PFAS claims or disclosures.
Shop Trilene on Amazon →Material
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
Berkley Trilene Sensation is extruded nylon monofilament, a linear polymer chain created by forcing melted nylon resin through a die. Monofilament nylon is chemically stable once cured and does not leach or off-gas significantly under normal fishing conditions (ambient temperature, freshwater/saltwater exposure, UV weathering). Unlike multi-strand or braided lines, monofilament has no additives for texture, no adhesives, and no coatings that would introduce heavy metals or problematic chemicals. The material is inert in its end use.
The brand's record and disclosure
Berkley (owned by Pure Fishing, a subsidiary of Rapala-VMC) has not published specific safety data sheets or chemical composition disclosures for consumer fishing lines, which is typical in the industry but limits transparency. No recalls, safety warnings, or contamination incidents involving Trilene Sensation are recorded in public safety databases. The brand does not advertise compliance with specific chemical standards for this product category, nor does it address PFAS status publicly, which is standard silence for monofilament manufacturers.
How it compares in its category
Monofilament nylon is the baseline fishing line material and carries the lowest intrinsic chemical hazard profile in the category. Braided lines (polyethylene, Dyneema) and fluorocarbon lines introduce different polymer chemistries but no proven greater hazard. Trilene Sensation occupies the middle market segment on price and performance; it is not marketed as premium (which might use specialty treatments) nor budget (which rarely differs materially in safety). Within monofilament, this product is unremarkable chemically.
If you buy it
Store the line spool indoors in a cool, dry place away from direct sunlight to slow UV degradation and preserve strength, though this does not affect chemical safety. Replace the line annually or after visible cracking, cloudiness, or reduced flexibility; aging nylon becomes brittle and may shed microfibers, though the health significance of ingested fishing line residue is not established. Dispose of old line properly (trash or recycling program) rather than releasing it into waterways, where it poses a wildlife entanglement hazard. Hands and fishing lures contacting wet line then touching the mouth are the only direct exposure route; this is negligible.
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 monomer or oligomer leaching
Nylon monofilament is fully polymerized and cross-linked after extrusion; free monomers (caprolactam) are not expected to leach into water or contact skin under normal fishing use. No reports of leaching from Trilene Sensation or comparable monofilament lines exist in literature or regulatory databases.
Heavy metal content in dyes or pigments
Monofilament nylon fishing line typically uses azo dyes or carbon black for color. Berkley Trilene Sensation is not marketed with exotic dyes and carries no safety warnings. No cadmium, lead, or arsenic contamination has been reported in commercial monofilament fishing lines of this type.
Microplastic shedding during use
UV exposure, abrasion against guides and rocks, and thermal stress can degrade nylon fibers and shed microplastics into water over time. Trilene Sensation, like all monofilament, will fragment gradually; the magnitude of environmental release and ingestion risk to humans via aquatic food chains is not quantified but is considered negligible for a single fisherman's use.
Degradation by-products or volatile organic compounds (VOCs)
Cured nylon monofilament does not off-gas measurably at ambient temperature or typical storage conditions. No odor, respiratory irritation, or VOC emissions have been documented for Trilene Sensation or standard monofilament lines. Heat exposure (e.g., leaving line in a hot car) may produce trace degradation, but this is not a hazard in normal use.
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.
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Fluorocarbon fishing line (monofilament)
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⚠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.