Shimano PowerPro Tenacity x8 300m Braid Fishing Line
Lower concern, PE braid typically PFAS-free but verify batch.
Shimano PowerPro Tenacity x8 is braided polyethylene with no known PFAS treatment. Standard PE fishing line carries minimal PFAS risk versus fluorocarbon alternatives.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Braided polyethylene fiber (PE)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Microplastic shedding during use and degradation
Braided PE naturally fragments into small particles over time when exposed to UV, mechanical stress, and water. Release directly into aquatic environments where line is used; cumulative impact unknown but consistent with all synthetic fishing line materials.
UV stabilizer additives (unknown composition)
Braided PE lines typically contain carbon black or other UV absorbers to extend shelf and field life. Shimano does not disclose specific additives; these are generally recognized as safe at trace levels but long-term environmental persistence is not well documented.
Colorant or dye additives
Braided lines are often dyed for visibility (this product appears in multiple colors). Dye composition and fastness are not disclosed; risk of leaching is minimal in water but unknown if azo dyes or heavy-metal pigments are used.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
No recalls or safety alerts exist for Shimano PowerPro or competitive braided PE lines for lead, cadmium, or antimony contamination. Industry standard production does not typically involve intentional metal additives, though trace contaminants in raw plastic resin cannot be ruled out without batch testing.
Source, FDA ↗The full breakdown
What it's made of and why it matters
Shimano PowerPro Tenacity x8 is a braided polyethylene (PE) fiber line, meaning strands of plastic polymer are woven together rather than monofilament extruded as one. PE is chemically inert under normal use conditions and does not leach additives into water or skin contact at room temperature. The "x8" designation indicates 8 individual strands braided together, which does not introduce additional chemical risk but affects tensile strength and handling.
The brand's record and disclosure
Shimano (parent company) is a major Japanese fishing equipment manufacturer with no established history of product safety recalls or chemical disclosures related to fishing line. The company does not publicly disclose braid composition details, ingredient sourcing, or chemical testing protocols on this product. No independent third-party certifications (e.g., eco-labels, toxicity testing) are listed for this specific line. Brand silence on PFAS and additives is typical for the fishing line category but leaves verification gaps.
How it compares in its category
Braided PE lines like this are considered low-hazard alternatives to monofilament nylon lines, which can shed microplastics over time and may contain UV stabilizer additives. Most braided PE competitors (Berkley, Spiderwire, Daiwa) follow similar material specs with no disclosed chemical advantages or disadvantages. This product occupies the mainstream mid-to-premium tier; hazard profiles are broadly equivalent across brands in this segment.
If you buy it
Store spools in a cool, dry place away from direct sunlight to prevent UV degradation and color fading (does not create toxic byproducts, but weakens line). Rinse with fresh water after saltwater use to prevent salt crystal buildup and corrosion of attached hardware. Replace line annually or after heavy use to maintain strength; old line does not leach chemicals but loses structural integrity. Dispose of used line in regular trash (not recyclable in most programs) or specialized fishing line collection programs where available.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- PowerPro has made none
Formulations change between production runs, so check the current label. How we grade.
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.