I've been sewing cotton fabric with poly or cotton thread for years. This thread, with ripstop, is essentially indestructible. Using a seam ripper I had to basically cut every single connection to get it to come apart, whereas with cotton/poly I can cut one connection and "rip" 10 or so connections. Excellent thread, unless I mess up, in which case... I'd rather have something lighter to tear apart.
I love my ripstop fabric and Gueterman? thread. It seems durable and hopefully when the crate pad is put to use next week, my daughter's dog won't be able to chew it up too fast! Thanks
Very high quality thread
This thicker thread is great for backpacks, webbing, and anywhere that might need a little extra strength. It sewed well with a size 16 needle although the top tension did need to be increased.
With a tensile breaking strength of 2,350 cN (5.3 lb), this Gutermann Mara 50 thread is 34% stronger than Gutermann Mara 70.
Since this thread is not bonded (it's core-spun polyester), it's more supple and less likely to unspool spontaneously. The downside of not being bonded is that it's harder to initially get this thread through the needle, and it's more likely to telescope (get bunched-up above the needle). A needle with a larger eye (such as a topstitch needle) is probably a good idea.
Since this thread is more UV resistant than nylon, it's a good choice for outdoor applications.
You can find Guterman Mara 30 / 50 / 70 specifications here: