Sulky® FAQ - Weight

Sulky Rayon Thread Weight

A: The lower the thread weight number, the heavier the thread. I know that makes no sense, but it's the truth. The 30 weight thread is approximately 1/3 stronger and denser than the 40 weight thread. Most of the computerized embroideries today are digitized for 40 weight thread. However for decorative topstitching and quilting, the 30 weight shows up more.

A: Anytime you want a heavier, denser fill-in, and a more visible thread, Sulky 30 wt. rayon thread should be your thread of choice. It is 1/3 thicker than 40 wt. thread, and 2/3 thicker than 50 wt. for greater visibility, depth and unique color interest. It is more forgiving for applique and decorative stitches. It is the favorite of quilters around the world because of its strength and the sheen of its natural fiber.

It is available in 156 luscious colors - 102 solid and 54 variegated and multi-colors on both a 180 yd. and 500 yd. snap spool.

Sulky 30 wt. rayon is frequently used as the background fill in embroidery designs when the digitizing is lightly done and a light colored design is being placed on a dark fabric or vice versa. The lighter Sulky 40 wt. rayon is preferred for all of the detail work.

Sulky Cotton Thread Weight

Q: What's the difference between the Sulky 30 weight and 12 weight Cotton Threads?
The heavy 12 wt. Cotton is a dramatic looking top thread in both the 66 Solid Colors and the 84 Cotton Blendables. We generally recommend using the 12 wt. on the top (although it is used for bobbin-work as well), and the matching 30 wt. in the bobbin.
Q: Can I use Sulky 12 wt. or 30 wt. Cotton for built-in decorative stitches on my machine?
A: Anytime you want a heavier, denser fill-in, and a more visible thread, Sulky 30 wt. Cotton Thread should be your thread of choice. The 12 wt. Cotton can be a little too heavy to use with decorative stitches since they are not digitized for heavier than 30 wt. It is fast becoming the favorite of quilters around the world because of its strength and the matte sheen of its natural fiber.
It is available in 66 Solid Cotton Colors and 84 Cotton Blendables in both weights. The 12 wt. comes on a 330 yd. kingsize spool, and the 30 wt. has 500 yds. on a kingsize. Both weights are also available on Jumbo Cones.