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Semperfli · Fly Tying Materials
Semperfli Nano Silk Thread, 30 Denier 18/0, Copper
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Options
- Item weight
- 0.1 Pounds
- Product dimensions
- 3.15 x 3.15 x 1.57 inches
Quick take
Ultra-fine gel-spun polyethylene fly tying thread in nano silk for tying smallest flies without breakage.
This Semperfli Nano Silk is a fine 30 denier (18/0) gel-spun polyethylene tying thread in copper, made for small flies. Its thin, low-profile lay suits patterns with many wraps on hooks around sizes 16 to 32. Pair it with a ceramic-insert bobbin to protect the fine fiber from wear.
Best for
- Tying size 20 and smaller dry flies
- Fly tiers who want indestructible thread for fine work
- Creating tiny heads without build-up on small hooks
Skip if
- You tie only large streamers and saltwater flies
- You prefer traditional silk or nylon threads
Strengths
- Nearly indestructible unlike silk or traditional thread
- Super thin lays completely flat for sleek fly heads
- Allows hook wraps on sizes too small for regular thread
Trade-offs
- Requires ceramic bobbin to prevent damage to thread
- GSP thread needs counterclockwise rotation to untwist properly
Fishing fit
- Techniques
- Fly fishing
- Skill level
- Advanced
Specifications
| Type | fly tying thread |
|---|---|
| Size | 30 denier, 18/0 |
| Breaking strain | 1,140g / 2.51 lb |
| Hook range | Sizes 16 to 32 |
| Strength comparison | 10x stronger than steel in same diameter |
Updated