I thought I'd do a quick post on this subject since it was a subject that got very little attention when I started about a year ago. Acetate Floss is a material that can be used to make very realistic shellbacks and nymph backs. The floss is very similar to the standard floss that is used in fly tying. When treated with acetone, the floss melts and becomes hard and translucent. This can make extremely realistic cases for your nymphs and streamers. You can achieve very different results depending on the technique that you use. I've wound, braided and layered the floss for different looks. The best way to find out what works best is to get creative. One tip that I picked up was to use a paintbrush to coat the floss. If you dip the floss into the acetone, it often melts completely through, exposing the lead wire or whatever materials you have underneath. I've attached a couple of photos of some flies I've created using the various techniques I've mentioned. If you would like to purchase any of these flies, please contact me at TheThirstyTrout@gmail.com. You can also see them in the shop page in the blog. I'm going to try and work on a video tutorial to show some of the techniques that I've used.