Semperfli Classic Waxed Thread – 8/0 Bulk Spool
Using similar techniques as with Nano Silk, we extruded thin polyester strands which were then slightly twisted and had a light amount of wax added to them. The amount of wax added has been specifically applied after consultations with top professional fly tyers.
The lightly twisted strands allow the thread to lay flat and split easily compared to other threads on the market. After reviewing market offerings, we have added 8/0 to the range and included fluorescent colors alongside traditional colors.
| Specification | Detail |
|---|---|
| Thread Type | Polyester |
| Twist | Lightly twisted |
| Wax Treatment | Light wax applied |
| Size | 8/0 |
| Length | 240 yd per spool |
| Colors | Traditional and fluorescent |
FAQ
What makes this thread easier to split than others?
The lightly twisted polyester strands combined with a minimal amount of wax allow the thread to lay flat and split more easily than standard threads on the market.
Is the wax treatment safe for use with fishing flies?
Yes, the wax amount has been carefully calibrated based on input from professional fly tyers and is suitable for use in fly tying applications.
Are fluorescent colors suitable for all fishing conditions?
Fluorescent colors are designed to enhance visibility in low-light conditions and are ideal for use in specific fishing environments where visibility matters.




Paul Ball –
The thread splits cleanly and lays flat without fraying. I’ve used it for tying dry flies and it holds well under tension. The fluorescent color stands out in the morning light, which helps with visibility during casting.
William Oliver –
Great quality for the price. The 8/0 size is perfect for small hooks. The wax gives it a smooth feel and it doesn’t break easily during tying. I’ve been using it for several weeks and it’s still in great condition.
Una Nash –
Works well for my fly tying projects. The split performance is better than other threads I’ve tried. The only minor issue is that the fluorescent color can be a bit too bright in direct sunlight.