Bonded sewing thread is typically a two, three, or four-ply construction coated with resin that makes filaments twisting more tough with a uniform finish which prevents the ply ends from unraveling in the reverse direction. Besides adding abrasion resistance and smooth stitching, the resin coating improves environmental resistance like heat tolerance, chemical and mildew resistance. Therefore, heavy duty bonded sewing thread outperforms non-bonded thread in most heavy fabric applications where bonded thread is always the superior choice.

Heavy Duty Boned Thread Applications

Bonded sewing thread can be applied to various tasks and industries, including:

1. Sewing: This heavy duty waxed thread is used for stitching fabrics together in garments, upholstery, and household textiles.

2. Leatherworking: The heavy duty bonded sewing thread is ideal for stitching leather goods such as bags, shoes, belts, and wallets.

3. Outdoor gear manufacturing: Utilized in the production of tents, backpacks, sails, and other outdoor equipment due to its durability and resistance to weather elements.

4. Upholstery: Employed for sewing furniture upholstery, car interiors, and marine upholstery.

5. Automotive: The bonded sewing thread is used in automotive upholstery, seat covers, and interior trim.

6. Industrial applications: Applied in industries such as marine, aviation, and construction for stitching heavy-duty materials and components together.

What is the Difference Between Bonded and Non-bonded Thread?

The main difference between bonded and non-bonded thread lies in their construction:

1. Bonded Thread: Bonded sewing thread is treated with a special coating or adhesive that helps to strengthen and stabilize the fibers. This process creates a smoother surface and reduces fraying, making the thread more resistant to abrasion, UV rays, chemicals, and moisture. Heavy duty waxed thread is commonly used in applications where durability and strength are essential, such as outdoor gear, leatherworking, and heavy-duty sewing.

2. Non-Bonded Thread: Non-bonded thread lacks the additional treatment found in bonded thread. It is made of individual strands of fiber twisted together without any coating or adhesive. While non-bonded thread is still strong and suitable for many sewing tasks, it may be more prone to fraying and wear over time compared to bonded thread. Non-bonded thread is often used in general sewing projects, quilting, and embroidery where extreme durability is not required.

Tips For Using Heavy Duty Bonded Sewing Thread

1. To find right needle for heavy duty bonded thread, you'e better to ensure the eye of the needle is 40% larger than the thickness of the bonded sewing thread. This will allow the bonded sewing thread to pass through the eye without trouble.

2. Polyester and nylon bonded threads including tex 45 bonded polyester thread and tex 45 bonded nylon thread usually have very similar tension characteristics as long as they are the same size. This means they are close enough in specs to generally not need tension adjustments when changing between them.

3. Please keep in mind that not all bonded heavy duty sewing thread is meant to be used with every type of fabric though bonding resulting in a more advanced technical sewing thread. Under no circumstance should you use the stronger bonded thread to sew silk since this heavy duty thread for sewing leather may excess grab the fabric and be more visible. So it's vital to match bonded sewing thread to fabric to be sewn. Generally speaking, using polyester thread for synthetic blend materials, cotton thread for natural fabrics, and silk thread for silk materials.