Loon Outdoors Biostrike Indicator Putty
Loon Biostrike is a putty indicator that makes adjusting the depth and size of indicator simple. Beyond that, it is reusable, biodegradable, and environmentally friendly. Biostrike can be rolled in a ball with wet fingers and applied anywhere on a leader, then removed and placed back in the container.
- Putty strike indicator
- Easily create an indicator to your desired size
- Use with small dry flies to increase visibility
- Excellent as a sighter for tightline nymphing
- Reusable and biodegradable
- 1 oz per container
| Feature | Detail |
|---|---|
| Material | Biodegradable putty |
| Usage | Leader indicator, small dry flies, tightline nymphing |
| Reusability | Yes, can be rolled and reused |
| Size | 1 oz per container |
FAQ
How do I apply the Biostrike putty to my leader?
Roll the putty into a ball with wet fingers and apply it to the leader where you want the indicator. Once used, remove it and place it back in the container for reuse.
Can I use this putty with different types of flies?
Yes, it works well with small dry flies and is especially effective as a sighter for tightline nymphing.
Is the putty safe for the environment?
Yes, the Biostrike putty is biodegradable and environmentally friendly.


Carol Martin –
I use this putty for tightline nymphing and it’s much easier to adjust depth than traditional indicators. The putty holds well and I can roll it to any size I need. It’s also great for small dry flies since it makes them more visible.
Angela Underwood –
This is a reliable and eco-friendly alternative to plastic indicators. I’ve used it for several weeks and it still works well. The reusability saves money and reduces waste.
Adrian Greene –
Works well for sighters, though it takes a bit of practice to roll the right size. It’s a little sticky when first applied, but that settles quickly. I appreciate the biodegradable aspect.