Fluorocarbon overview: Knots, care and troubleshooting
Fluorocarbon's weak spot is the knot: stiff FC measured only about 71–76% knotted. Wet it, cinch slowly, avoid friction heat, and test-pull.
| Knot | For | Notes |
|---|---|---|
| Improved clinch / Trilene knot | Hooks and lures | The standard; fewer wraps on heavy FC |
| San Diego Jam | Lures | Seats well on FC |
| Palomar | Hooks (drop shot) | Bulky in heavy FC |
| Double uni | FC to FC or nylon | Enough turns on both sides, pull together |
| FG | Braid to FC leader | See braid · leaders and knots |
Troubleshooting
| Problem | Cause | Fix |
|---|---|---|
| Line springs off a spinning spool in coils | Memory; overfilled; stiff FC | Underfill; soft FC or PE + leader; stretch it before fishing |
| Keeps breaking at the knot | Dry cinch heat; wrong knot; crushed knot | Wet and cinch slowly; change knots; retie and test-pull |
| Curly, thinner line after pulling a snag | Past the yield point: permanent deformation | Cut it and retie (especially light stiff FC) |
| Rough or whitened spots | Abrasion | Run your fingers over the last few metres after each fish; cut |
| Sharp kinks | Bent sharply | Cut: a kink does not recover |
| Stiffer and harder to knot in the cold | PVDF stiffens when cold | Lighter or softer FC; wet and cinch slowly |
| When to replace | FC absorbs almost no water and resists UV, so it ages slowly | Replace for wear, kinks and knot damage, not by colour or calendar |
Sources: TackleTour knot strength · TackleTour Shooter
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Fluorocarbon overview
Fluorocarbon in six tables: soft vs stiff, main line or leader, diameter and abrasion, sinking and visibility, colour, knots and care.
- Soft vs stiff
- Main line or leader
- Diameter, strength and abrasion
- Sinking and visibility
- Colour
- Knots, care and troubleshooting
Related chapters
- Largemouth · Vision — Fluorocarbon: what 'invisible' really buys, and what diameter and stiffness do to bait action
- Line polymer: PE, fluorocarbon, nylon, ester — Fluorocarbon against braid and nylon