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Seaguar

Seaguar invented fluorocarbon fishing line in 1971 and is the only manufacturer that produces its own fluorocarbon resin from raw material to finished line. It makes fluorocarbon and braided fishing line and leader for freshwater and saltwater anglers of every skill level, from casual to tournament pro.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T13:58:18.478Z. Cached copy · Source on seaguar.com

# Seaguar

> Seaguar invented fluorocarbon fishing line in 1971 and is the only manufacturer that produces its own fluorocarbon resin from raw material to finished line. It makes fluorocarbon and braided fishing line and leader for freshwater and saltwater anglers of every skill level, from casual to tournament pro.

Founded in 1971 by Kureha Company (Tokyo, Japan), the original inventor of fluorocarbon fishing line and leader. Seaguar is the only fluorocarbon brand that manufactures its own resin end-to-end; most competitors buy resin from third parties. Its Double Structure Technology is a Seaguar-exclusive extrusion process that combines two resins in one line for higher tensile strength and knot strength, used in lines like TATSU, Gold Label, Blue Label (FC), and Fluoro Premier. Product range includes 100% fluorocarbon mainline and leader, braid, species-specific lines, apparel, and the Seaguar JDM (Japanese Domestic Market) collection of specialty lines imported directly from Japan.

## Collections
- [Freshwater Lines & Leaders](/collections/freshwater)
- [Saltwater Leaders](/collections/saltwater)
- [Fluorocarbon Leaders](/collections/leader): all-water leader material
- [Mainline](/collections/mainline)
- [Braid](/collections/braid): Smackdown, TactX, Threadlock
- [Exclusive JDM Collection](/collections/exclusive-jdm-collection/jdm): lines imported from Japan, engineered for Japanese anglers and techniques
- [New Products](/collections/new)
- [Apparel & Gear](/collections/apparel)
- [All Collections](/collections)

## Key Pages
- [Fluorocarbon FAQs](/pages/faqs): properties, refractive index, Double Structure Technology
- [Line Finder](/pages/line-finder): product selector by water type, application, reel
- [Retailer / Store Locator](/pages/store-locator)

## Read
- [Seaguar on the Water](/blogs/seaguar-on-the-water) — technique guides, species-specific tips, and pro angler features.
- [Seaguar on the Water — Freshwater](/blogs/seaguar-on-the-water/tagged/freshwater) — freshwater-tagged posts.
- [Seaguar on the Water — Saltwater](/blogs/seaguar-on-the-water/tagged/saltwater) — saltwater-tagged posts.
- [Pro Tips & Techniques](/blogs/pro-tips) — technique-focused posts from pro anglers.
- [Pro Tips & Techniques — Line & Leader](/blogs/pro-tips/tagged/line-leader) — posts tagged on line and leader selection.

## Talk
- [Contact form](/pages/contact)
- [Customer service](/pages/customer-service): orders, returns, deliveries
- [New retailer inquiries](/pages/new-retailer-inquiries): carrying Seaguar products in-store
- [Pro-Staff inquiries](/pages/pro-staff-inquiries): sponsorship/pro team applications
- [Captain/Guide/VIP program inquiries](/pages/captain-guide-vip)
- [Scholastic program inquiries](/pages/scholastic-programs): school/college fishing teams
- [Donation requests](/pages/donation-requests)
- [Corporate contact](mailto:info@Kureha.com): Kureha America, Inc. — (281) 916-1633

## Optional
- [Homepage](/)

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