Broken selvage threads can be a frustration to any weaver. Especially when you are using soft yarns in the warp to make scarves, or other fabrics. Yarns like Jaggerspun Superfine Merino wool yarn are fabulously soft against your skin, but the fine, soft yarns take a lot of abuse during the weaving process and can break at the selvages.
To reduce frustration that comes with broken selvage threads and provide a stable selvage for the weaving process, add a strand of fishing line as a floating selvage. You can add this after beaming and threading the loom. Measure out a generous amount of fishing line (more than the length of the project), put most of it in an empty film canister (with digital cameras these are going to be a hard to find item!) or empty medicine bottle (not so hard to find) and hang this over the back beam. Run the loose end through the reed and tie it in with your outside warp bundle as you tie on to the front apron rod. The fishing line acts just like your selvage thread, and gets woven into the project just like those outside yarns. The strength of the fishing line will dramatically reduce breakage of your selvage threads.
Then once you have cut the project from the loom, gently remove the fishing line from the project before washing or tying fringe. You may have to pull it out in sections if you have a long scarf or a long piece of yardage. However, the slipperiness of the fishing line makes it easy to remove. You don’t want to leave it in even though it is invisible because it doesn’t shrink like the rest of the fabric.