GSP fibers are quite tough and can damage edges on fine scissors and stainless bobbins. The makers recommend using a ceramic bobbin and cutting with a razor blade. This thread is very durable, however UV cure and water-based cements can be used for appearance or texture. Solvent-based glues and coatings are not recommended. This thread consists of 16 strands, each of which has a weight of about 2 denier and a breaking strength of about 2.6 oz. (75 grams). The user can split the thread into individual strands or twist any number of strands into thread. Two strands would have a weight of 4 denier and a strength of about 5 oz. Four strands would be 8 denier and 9.8 oz. Eight strands would be 15 denier and 19.6 oz. (560 grams).
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The idea of a 30 denier Spectra thread seems great. The SemperFli Nano Silk is a poor execution.
Although the description of this thread notes that it is slightly twisted, this did not appear to be the case with the two spools of white thread that I purchased. After un-spooling two or three yards of thread, the individual fibers of the thread seemed to lose their way on the spool and become increasingly tangled. In short order, the spool was a rat's nest of spectra filaments. At $4.98 a spool, you can be sure that I spent a considerable amount of time trying to untangle the mess. To no avail. Total loss. Both spools!
I also ordered 4 spools of black, and it seems that the wax that provides the black color holds the thread together adequately to actually tie some flies. Too bad they didn't wax the white thread!
Cheap spools poorly designed for this gossamer thread top off the poor execution of this product. I would not buy this again, particularly at 50 meters for $4.98!
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