Is there a “conversion” to thread “weights” compared to the A,B,C, etc..we’re used to using fior rod builds. There is a sewing place literally 90 seconds from my house, and I dropped in there one day just to see. They had an incredible selections of colors. But their sizing uses “weight”. I know it kind of has to do with weight for every 1000. And look to be a A or B size diameter. These are “poly” threads and most say “colorfast”. Would that be the sane or similar treatment to CF rod threads. As in may not need CP? I would love to know if these can be used like any of our other threads, or there is just so much more of a selection! Thanks

Most sewing/embroidery threads are treated with a silicone to allow them to be used in a sewing machine. So if you use these threads make sure you use CP, otherwise you may have problems with fish eyes.
Norm

Thanks Norman! Any idea on how to judge thread size bun”weight”?

Andrew
#40 polyneon thread seems to be slightly smaller than A. #30 even smaller yet. I have used #40 threads on guide or butt wraps on a few builds, and have mixed it in with A on some wraps. Do not use cotton or rayon thread, use the poly threads, such as Sulky or Floriani. I always seal the poly threads with CP.
Rog

Andrew,
Pretty simple
Take a simple dial caiper and measure the diameter of an A , b, C and D sized thread.

Then, armed wit h this information go to the thread store and use the same caliper t measure the size threads in which you might be interested.

With the previous information, you can make a simple decision on whether you want to purchase thread or not.

Remember, polyester thread tends to no stretch very much.

On the other hand, nylon thread in the same diameter has a substantial stretch, which is one of the factors that make nylon thread such an excellent thread.

so, be careful when purchasing pony thread and if you are willing to give up the the stretch properties found in nylon thread.

Take care

So would this actually make a “poor” wrapping thread?

Not poor thread, just requires the use of color preserver so finish will adhere properly. No translucent wraps.

Pretty sure that info is in the archives use the search function.

Madera Polyneon #40 is, as stated, slightly thinner than "A" wrapping thread. Polyneon #60 is thinner than #40 and #75 is thinner than #60. Color choices in #60 and #75 are limited. I would up to "D" as a wrapping thread for weaves when using #40 for the design. I would drop to "A" or #40 Polyneon for the wrapping thread when using #60 or #75 for the design. The nice thing about the finer threads is that you can use the same pattern and get a much smaller finished weave. To see the difference wrap one centimeter of each size on a piece of dowel and count the number of wraps you get. Write that information down so you can refer to it when you want to estimate the sizes of a finished pattern. And yes, always use Color Preserver. My wrap counts Per Centimeter are: #40 = 40 wraps, #60 = 67 wraps and #75 = 87 wraps. That can change depending on how tightly you pack the thread.

This may help
[www.amefird.com]

Great info! Thanks Joseph!