Serafil [name change] thread sizes
Serafil [name change] thread sizes
Hi to all the Beaders, Knotters, Stringers, Pearly Friends,
Thought it might be good to add some info here ~ helpful to have all in one place about Beader's Secret thread. Things like size, strength, diameter and a few tips.
It is currently offered in 4 sizes (3 listed in my Etsy store, and soon the 4th size, very heavy #10 will be added.)
Originally the only size offered was #30, which when used
doubled, fits the drill holes of most pearls. It gives the classic look, that of a small, discrete knot which blocks the hole without pulling inside, yet allows the strand flexibility. This most popular size #30 is offered in over 50 colors. The other sizes are available in about half as many colors, but pretty much all the basic neutral shades and some brights.
Break strengths and diameters are provided by the commercial company; knot sizes measured by me and can, of course, vary slightly. Sorry, I couldn't get this chart to format directly on the page; it kept running the info together, so had to take a pic.
A way to check the size of thread with the pearl hole: Pull out about 2 feet of thread from the spool, but don't cut. Put the needle on and double the thread. Run the needle and thread through the end holes and back to make sure 4 threads will fit; tie a knot to check for fit if you think knot will be too small.
If the hole seems just a tad too large, you may need to work with 3-size #30 threads, or 4-#40 threads (2 doubled lengths). Either of those options make a tidy, smooth knot. Yes, I recommend you pull each thread; it does take a bit longer, but it's worth it. Sometimes we have to get creative!
You may want to check out Pricescope, where 3 years ago we had a
detailed discussion about using 3 and multiple threads.
I recently restrung a pearl necklace that had been knotted with 6 strands of fine thread (12 when finishing the clasp)!