KastKing · Fishing Tackle & Gear
KastKing FluoroKote Fishing Line
Skip until brand discloses PFAS content or testing.
This monofilament line features a proprietary Teflon-family coating of unspecified composition. No public PFAS data, third-party testing, or brand disclosure available.
The better-graded swap
KastKing
KastKing Hammer Depth Charge Weighted Fishing Line
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Monofilament nylon with proprietary Teflon-family coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What KastKing FluoroKote Fishing Line is made of, ingredients and materials
KastKing FluoroKote is a monofilament nylon fishing line with a proprietary Teflon-family coating designed to reduce visibility and improve handling. The nylon backbone is a synthetic polymer stable under normal fishing use; however, the Teflon-family coating is the critical unknown. Teflon-family coating can include Teflon-type coating, PVDF, or other fluorinated compounds, and their thermal stability and potential for microplastic shedding depend entirely on formulation, which the brand has not disclosed.
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.
Unknown / proprietary coating
A coating is recorded with no disclosed chemistry.
Teflon-family coating composition (undisclosed)
The brand does not specify whether the proprietary Teflon-family coating contains Teflon-type coating, PVDF, or other fluorinated compounds. Without independent testing or disclosure, the potential for PFAS shedding or thermal off-gassing under UV or heat stress cannot be ruled out, particularly during storage or if line is exposed to sun.
Microplastic shedding from coating degradation
Monofilament fishing line with any applied coating naturally degrades over time and with UV exposure. Microscopic fragments of the Teflon-family coating may shed into water during use or after disposal, contributing to aquatic microplastic pollution; the long-term environmental impact is not quantified by the manufacturer.
Lack of third-party safety certification
This product category is not regulated by FDA or EPA for chemical safety, and KastKing does not voluntarily pursue independent certifications (e.g., for heavy metals, phthalates, or PFAS limits). This absence of accountability makes risk verification impossible without proprietary disclosure or independent testing.
What’s reassuring
Nylon monomer residue (minimal acute risk)
Nylon monofilament is chemically stable during normal use and contact with skin or water poses no documented acute hazard. However, if line is heated or burned (e.g., accidental fire), thermal decomposition could release nitrogen oxides; avoid incineration.
How is this PFAS grade calculated?
The brand's record and disclosure
KastKing (owned by Eposeidon) does not publicly disclose PFAS content, testing protocols, or certification status for this product line. The brand has no established third-party certifications (e.g., Bluesign, OEKO-TEX) related to chemical safety for fishing tackle. No recalls or adverse reports specific to FluoroKote coating hazards are documented in public records, but absence of reporting does not confirm safety.
How it compares in its category
Monofilament fishing lines are a commodity category with minimal regulation; most competitors (Berkley, Shimano, Cortland) similarly withhold detailed Teflon-family coating composition. Some brands use uncoated nylon or polyvinylidene fluoride (PVDF) as alternatives. FluoroKote's competitive advantage is its coating invisibility, but this comes at the cost of chemical transparency, making risk assessment difficult relative to simpler braided or uncoated options.
If you buy it
Store the spool in a cool, dry place away from direct sunlight; UV exposure and heat can degrade Teflon-family coating coatings and potentially accelerate microplastic release. Inspect the line regularly for fraying, discoloration, or coating separation, and replace after one season of active use or if visible degradation appears. Avoid storing near solvents or extreme heat sources. Dispose of used line responsibly; Teflon-family coating-coated monofilament does not biodegrade and should not be left in water or littered.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- KastKing has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to KastKing FluoroKote Fishing Line?
- Fiberglass rod, plastic reel, rubber grip
- We found no PFAS statement from the brand
- Fiberglass splinters from rod degradation
3 hazards checked on this product, all on its full breakdown.
- Plastic body, tinned steel hook
- We found no PFAS statement from the brand
- Microplastic generation from wear
2 hazards checked on this product, all on its full breakdown.
- Monofilament nylon fishing line
- We found no PFAS statement from the brand
- Microplastic shedding on degradation
2 hazards checked on this product, all on its full breakdown.
More fishing tackle & gear 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.