Fireline is a synthetic thread made from gel-spun polyethylene which is known as the strongest fibre, per diameter ever created. Its high tensile strength is astonishing which is why it is recommended in so many ‘how to’ articles and YouTube beading tutorials.
Its strength and durability means it can be easily knotted but does not stretch. It is excellent for working with heavy or sharp edged beads such as Swarovski, semi-precious and precious beads. Please note that it is not indestructible, but is the hardest wearing thread of its kind.
To finish any bracelets or necklaces made with this thread you just need to knot the ends of the thread and add a little Precision Bead Tip Hypo Cement (8000186).