Polyester Sewing Threads

Each thread spool is approximately 400 yards / 365 metres long and they come in a range of 12 different colours. You can purchase them individually or as a set.

These threads have been made from 30-weight corespun high quality polyester. But what does that even mean? It means it is a strong yet soft, all-purpose sewing thread which is suitable for both hand and machine sewing as well as quilting, crafting and mending.

These are part of our own range of threads, which we have worked closely with the manufacturers to ensure that each thread in our range has the same high quality while still being affordable.

This multipurpose polyester thread is best used with the following fabrics (and similar):

• 100% Polyester fabrics: e.g. Fleece, satin, chiffon, taffeta, crepe, georgette, & polyurethane laminate.
• Polyester-Cotton Blends (Poly-cotton): e.g. Broadcloth, poplin, and shirtings. 
• Nylon and Nylon Blends: e.g. Ripstop nylon, windbreaker fabrics, and activewear.
• Knit Fabrics with Elastane/Spandex: e.g. Jersey, interlock, scuba, and performance spandex blends.
• Rayon and Viscose Blends: e.g. Ponte knit, modal blends, and challis.
• Acrylic and Acrylic Blends: e.g. Faux fur, fleece coatings, and heavy knits.

When Not To Use This Thread:

• Very heavy-weight fabrics such as 14oz denim, heavy canvas, leather or heavy weight upholstery fabric. We recommend picking a heavy-duty thread instead.
• High-strain uses such as pet leashes or boat sails. To add more strength at the join, we recommend picking a heavy duty thread instead.
• 100% natural fabrics such as cotton or silk. Polyester is stronger and moves differently to these fabrics and so holes can start appearing around the stitches over time. It is usually considered better to match the stretch and strength by using cotton thread instead.
• Exposure to high heat – Polyester has a lower melting point than cotton, so we advise choosing cotton over polyester thread (and fabric) if you are making anything that is likely to come into contact with higher temperatures. That includes sewing projects like microwave heat packs, hot water bottle covers, oven gloves, table mats or similar.

Recommended Needle Size:

This thread is best used with needle sizes 70/10, 80/12, or 90/14 – pick the size based on the fabric weight. Lower = lighter weight, Higher = heavier weight fabrics. Regular universal needles are best for non stretch fabrics and ballpoint needles for stretch fabrics (and a stretch stitch on your machine).

Colour Fastness

These polyester threads have been tested to make sure that they hold their colour well even after many washes.

Certifications & Product Safety

These threads have been certified to OEKO-TEX STANDARD 100. This means that the threads are tested at every stage of production by an independent lab every year to make sure that the threads do not contain any materials or chemicals which could be considered as harmful to health.

What makes a good polyester sewing thread?

• Strength & Durability

Not only does a thread need enough strength to sew smoothly without breakage interruptions, it must also be strong enough to literally hold everything together once it’s been stitched in place. Polyester is inherently stronger than natural fibres like cotton or silk threads, but the quality of the polyester used and how they are spun also influence the strength. These threads have been corespun which is a technique of using a core fibre which is the central support then wrapping the other fibres around this. This makes it less likely that the threads will fray or break while being sewn or once they are being placed under tension while your sewing creation is being used or worn.

• Stitchability

How well the thread stitches can make a big difference to a project. Everyone wants pretty evenly spaced professional-looking stitches regardless of the fabric they are sewing with. The strength of these threads means you are less likely to experience breakages while sewing, but also the way they have been spun with the higher quality polyester means that you will experience less fraying than with some other polyester threads – this means less fluff coming off inside your sewing machine which also means a reduction in skipped stitches and birds-nest-like thread messes.

The corespun technique also helps threads recover better from stretching stresses which makes them a great choice for both stretch and non stretch fabrics. – Just remember to use a stretch stitch for those stretchy fabrics when you sew them!