Semperfli SemperSeal Seal Fur Substitute
SemperSeal is the perfect synthetic alternative to seal fur for fly tying. It is legal to use worldwide and matches a wide range of traditional Irish wet fly colors including Fiery Brown, Donegal Blue, Sooty Olive, natural, and fluorescent shades.
- Synthetic seal fur substitute — legal worldwide
- Fiber length: 3″ (75mm) — ideal for full-length use in streamers, predator flies, and saltwater patterns
- Cut to 1/2″ to 3/4″ (12mm to 18mm) for use on wet flies and nymphs
| Color Options | Use Case |
|---|---|
| Fiery Brown | Wet flies, streamers |
| Donegal Blue | Wet flies, nymphs |
| Sooty Olive | Wet flies, predator patterns |
| Natural | General wet fly applications |
| Fluorescent | High-visibility patterns in low light |
FAQ
Can SemperSeal be used for both freshwater and saltwater flies?
Yes, SemperSeal is suitable for both freshwater and saltwater fly patterns due to its durability and color accuracy.
What is the recommended cutting length for wet flies?
Cut SemperSeal to 1/2″ to 3/4″ (12mm to 18mm) for use on wet flies and nymphs.
Is SemperSeal environmentally friendly?
Please contact customer service




Evan McDonald –
I’ve been using SemperSeal for several months now and it’s a great replacement for real seal fur. The colors match well with my wet fly patterns, especially Fiery Brown and Donegal Blue. It holds up well in the water and doesn’t shed easily. Perfect for both trout and saltwater fishing.
Eric Pullman –
The fibers are consistent and easy to cut. I use it for both nymphs and wet flies. The natural color blends seamlessly with my existing patterns. It’s a reliable alternative that doesn’t require special care or storage.
Joanne Marshall –
As a beginner in fly tying, I found SemperSeal very easy to work with. The 3″ length is perfect for streamers, and I can cut it down to 1/2″ for wet flies. The colors are vibrant and accurate, matching the original seal fur patterns.