Fireline is a pre-waxed, braided cord consisting of gel-spun polyethylene which is known as the strongest fiber, per diameter, ever created. It has an unbelievably high tensile strength and has been recommended in numerous how-to articles on seed beading and beadworking. We've used this for decades at The Bead Gallery
FireLine - Crystal or smoke - choose 6LB, 8LB or 10LB — Originals Beads and gems
FireLine Braided Bead Thread, 0.006-Inch, Crystal Clear
Beadsmith Fireline Braided Beading Thread 8LB-strength .007 Ave Diameter, Smoke Grey, Large Roll 125 Yards : : Home & Kitchen
The Beadsmith Fireline by Berkley Micro-Fused Braided Thread 6lb. Test.006/.15mm Diameter, 50 Yard Spool, Crystal Color Super Strong Stringing Material for Jewelry Making and Bead Weaving
This super strong, flexible, pre-waxed braided beading thread is made from gel-spun polyethylene, one of the strongest fiber cords per diameter ever created. The permanent black color is not a coating or dye and will not rub off. Beadworkers and beadstringers will find that this new product feels and works better than the finest bead thread, yet is as strong as jewelry wire. Most beads will not cut this product. It does not stretch and knots easily. Similar to size D Nymo.
Beadsmith FireLine - Braided Bead Thread - Smoke - 50 Yards (8lb Test)
Fireline Beading Thread - crystal - Island Cove Beads & Gallery
FireLine® Crystal Clear .005 Bead Thread, 15 Yds. - RioGrande
Fireline Thread Quality Beads and Tools for hand-made jewelry
Fireline, 6 lb, Smoke, 300 yards - Jill Wiseman Designs
FireLine Beading Thread 6LB Crystal Smoke Black Beadsmith 15YD 50 125 yard/spool
Braided bead thread has been recommended in many recent how-to articles on bead working. This is the fiber to use for all stringing which requires extra strength or multiple passes, but involves beads with small holes. This super strong, flexible, pre-waxed Braided bead thread incorporates gel-spun polyethylene. One of the strongest fiber cords per diameter ever created.
FireLine Braided Bead Thread - 6 lb - Smoke