Semperfli Classic Waxed Thread – 12/0 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 12/0 to the range and included fluorescent colors alongside traditional colors.
| Specification | Detail |
|---|---|
| Thread Size | 12/0 |
| Length | 240 yd |
| Material | Polycrystalline Polyester |
| Finish | Waxed, Slightly Twisted |
| Colors | Traditional and Fluorescent |
FAQ
What makes this thread easier to split than others?
The thread is slightly twisted and has a light wax coating, which allows it to lay flat and split more easily than standard threads.
Is the wax applied uniformly across the thread?
Yes, the wax is applied in a controlled amount after consultation with professional fly tyers to ensure consistent performance.
Are fluorescent colors suitable for all fishing conditions?
Fluorescent colors are designed to enhance visibility in low-light conditions, making them ideal for certain environments. Performance may vary based on water clarity and light levels.



Natalie Burgess –
This thread performs well in both dry fly and wet fly tying. The wax helps it lay flat and split cleanly. I’ve used it for several weeks and it hasn’t frayed or weakened under tension.
Tracey Walsh –
The 12/0 size is perfect for small hooks. The fluorescent colors stand out in early morning fishing. It splits easily and holds well during casting.
Eric Peters –
Good quality thread with a smooth feel. The wax helps with splitting, though it may be slightly more slippery than some alternatives. Works well for my fly tying routine.
Michael Grant –
I’ve tried several waxed threads, and this one stands out for its consistency and ease of use. The 240-yard spool is a great value for bulk tying.