HTR 138 Black …

Like this thread 5 stars:* Super tough, Hot knife has hard time cutting it * slick enough to work with SailRite sewing machine (must adjust both bobin & top tensions). * Good pricing. * won't shrink. * Blends well with my Captain Navy Sunbrella Canvas.Be warned that the thread won't melt easy, you'll have to tie the ends manually.

I purchased this thread for use on an automotive interior. Unfortunately, my concern is that it may not really be suitable for any application where the thread would be visible. The thread is strong for sure, however it has a terrible habit of the individual strands wanting to unravel when going around any twists or bends (see product photo attached).The thread also is more flat than you'd expect (not round like bonded polyester thread) and has sort of an unnatural gloss appearance. It may not want to sit down flat across the individual stitching from what I can tell. The stiffness might make it very strong, but that's its only redeeming quality as far as I can see. If using this in an application such as with canvas or a boat top - or anything where the thread must endure twists, bends or turns, my concern is that the individual strands or stitching could pucker up and separate over time.

good product