











🧵 Sew Strong, Stay Bold: The Thread That Outlasts the Sun
Simthread’s 12WT bonded polyester thread offers superior UV resistance and heavy-duty strength, making it the go-to choice for outdoor sewing projects. With 500 yards across two spools, seamless construction, and compatibility with a wide range of needles, it’s engineered to deliver durable, weatherproof stitching for everything from tents to patio cushions.





| ASIN | B0CGV2HK8X |
| Batteries required | No |
| Best Sellers Rank | #2,031 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #23 in Sewing Thread |
| Brand | Simthread |
| Color | 2 × NP-BLACK |
| Compatible Knitting Needle Metric Size | 2 Millimeters |
| Compatible Knitting Needle US Size | 10 |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,138) |
| Item Length | 500 Yards |
| Item Weight | 2.11 ounces |
| Manufacturer | CR THREAD INDUSTRY |
| Material | Polyester |
| Number of pieces | 2 |
| Product Care Instructions | Machine Wash |
| Unit Count | 2.0 Count |
M**S
Sturdy thick thread!
The polyester thread was nice, thick and sturdy - no breakage! It worked great with a heavy duty machine needle (100/18). It required my sewing machine tension set at level 7 which made a lovely zigzag finishing stitch on the perimeter of the fabric I purchased to make a gray waterproof canopy replacement cover for my outdoor swing! Would have liked a gray colored thread but the black thread made a pretty contrast. Was well worth the cost!
P**N
Quality thread
It works great and was just as it was advertised.
A**R
Did it's job
Thread color was exactly as it stated it was when I received it. Thread was packaged very nicely and easy to start using. Seems to be heavy duty worked perfectly for the project I was working on. Would purchase it again.
D**S
Upholstery mending
Nice and strong thread thick enough to mend upholstery fabric and hold it tightly together. I hand stitched it.
P**.
Thread
Doesn't fray easily and decent to get threw the eye of a needle
P**N
Great value
It's a good heavy weight thread.I'm using it to sew canvas fabric seat covers for a boat. The size of spool has a lot of thread on it and it's very strong.
M**E
Good product
great product fast shipping
J**R
Super strong
This stuff is strong. I used this to see a camping chair back together and it has been holding up great.
S**E
Sarkes Garn, ob UV und Wetterfest wird sich dann zeigen. Bisher Top!
M**S
Fil très résistant. Conviendra très bien pour coudre le toit en tissus de ma tonnelle de jardin.
M**6
Utilisé pour recoudre toile de transat. Résistant, facile en machine à coudre. Très bonne qualité
M**S
Very strong
R**S
Me parece buena las veo resistente
Trustpilot
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