What Is Non-Fusible Material?

Non-fusible material refers to a type of fabric or thread that doesn’t easily melt or fuse together when exposed to heat or pressure. This quality is especially important in certain applications, such as serging and coverstitching, where the thread is subjected to high speeds, tension, and repeated washing. Made from 100% core-spun polyester, this thread is specifically designed to withstand the rigors of serger and coverlock machines, ensuring that your stitches remain intact even after multiple washes or intense strain. Whether you’re a professional seamstress or an avid DIY enthusiast, the use of non-fusible materials like the Madeira Aerolock Premium Serger thread can greatly enhance the longevity and quality of your sewing projects.

What Is the Difference Between Fusible and Non-Fusible Interfacing?

Fusible interfacing and non-fusible interfacing are two types of materials used in sewing projects to provide structure and support to fabrics. The main difference between the two is how they’re applied to the fabric.

It’s a layer of adhesive on one side, which melts when ironed, creating a strong bond between the interfacing and the fabric. This type of interfacing is commonly used in garments where a crisp appearance and stability are desired, such as collars, cuffs, and waistbands. It’s easy to apply and can be ironed directly onto the fabric.

Non-fusible interfacing, on the other hand, doesn’t have adhesive and doesn’t bond with heat. It’s typically sewn onto the fabric using a sewing machine or by hand. Non-fusible interfacing comes in various weights and fibers, such as cotton, polyester, or wool. This type of interfacing is often used in projects where a more relaxed look and feel are desired, such as bags or quilts. It provides stability and support without altering the drape or texture of the fabric.

Madeira Aerolock Premium Serger thread, on the other hand, is a high-quality thread designed specifically for use in sergers and overlock machines. It’s made of 100% core-spun polyester, which ensures durability and strength. This thread is ideal for stitching seams, hems, and finishing edges in knit or woven fabrics. It’s designed to withstand frequent washing and strain, making it a reliable choice for long-lasting garments or projects. Madeira Aerolock Premium Serger thread is particularly well-suited for use with Janome CoverPro machines, as it can handle the high speed and tension required by these machines.

When it comes to selecting the right thread for your sergers or overlock machines, Madeira Aerolock Premium Serger thread is a reliable choice. This high-quality thread is made from 100% core-spun polyester, ensuring durability and longevity even after numerous washes or under strain. It’s specifically designed for machines like the Janome CoverPro family, making it an excellent option for all your interfacing needs.

How Do I Know if My Interfacing Is Fusible?

Non-fusible material refers to interfacing that doesn’t have the adhesive quality to bond to fabric when heat is applied. Instead, it relies on other methods like stitching or pinning to attach it to the fabric. One way to identify whether an interfacing is fusible or non-fusible is to look for any adhesive on one side of the interfacing. Fusible interfacing will have a layer of adhesive that can be activated by heat, while non-fusible interfacing will have a plain texture without any adhesive.

Another way to determine if your interfacing is fusible is to check the product description or packaging. Usually, if the interfacing is fusible, it will be clearly stated on the label or in the product details. Manufacturers understand the importance of providing this information to consumers so that they can choose the appropriate interfacing for their project.

If you’re unsure about the fusibility of your interfacing, you can perform a simple test. Take a small scrap piece of the interfacing and fold it in half. Place a hot iron on the folded section for a few seconds and then carefully remove the iron. If the interfacing sticks together and stays bonded, it’s fusible. On the other hand, if the interfacing doesn’t adhere and easily comes apart, it’s non-fusible.

Understanding the type of interfacing you’re working with will help you achieve the desired results in your sewing projects.

One popular option for adding structure and softness to sewing projects is fusible fleece. Fusible fleece is typically made of a combination of polyester and polyester fibers that have been thermally bonded. This helps the fleece stick to the fabric when ironed, creating a secure and stable bond. The use of fusible fleece can add a layer of warmth and insulation to projects such as quilts, bags, and garments. It’s often used in combination with other fabrics to add structure and shape.

What Is Fusible Fleece Made Of?

Fusible fleece is a type of interlining fabric that’s commonly used in various sewing projects. It’s made of a combination of synthetic fibers, typically polyester, and a fusible adhesive. The fibers are processed and woven together to create a soft, lofty fabric with a slightly sticky backing. This backing can be activated by applying heat, such as through an iron, which melts the adhesive and allows it to bond with other fabrics.

It can be used in a variety of applications, including garment construction, bag making, and quilting. When used in garments, it provides added body to lightweight fabrics, such as silk or cotton, and helps to maintain the shape of the garment. In bags, it adds strength and stability to the structure, making it more durable. In quilts, it can be used as a layer of batting to provide insulation and a soft, quilted effect.

Madeira Aerolock Premium Serger thread, on the other hand, is a high-quality thread specifically designed for sergers and overlock machines. It’s made of 100% core-spun polyester, which means that it’s a polyester core with a layer of cotton or other natural fibers wrapped around it. This combination of fibers gives the thread strength, durability, and a smooth finish.

It’s a balanced twist, which means that it doesn’t unravel or break easily during sewing. This makes it ideal for use in sergers and overlock machines, which require a strong and reliable thread.

It’s resistant to shrinking, fading, and fraying, making it suitable for use in garments and accessories that are subjected to regular use and washing. With it’s wide range of colors, it can also be used for decorative purposes, such as adding decorative topstitching or creating decorative seams.

Different Types of Fusible Fleece and Their Specific Uses

Non-fusible material refers to a type of fabric or interfacing that doesn’t have adhesive properties. It can’t be bonded to other fabrics or materials using heat or pressure like fusible materials. Non-fusible materials are commonly used in a variety of sewing and crafting projects where a temporary or non-permanent bond is desired.

There are different types of fusible fleece available, each with specific uses. Fusible fleece is a type of non-woven interfacing that’s adhesive on one side. It’s commonly used in projects that require added structure, such as bag making or adding warmth to garments. Fusible fleece can be ironed onto fabric to provide stability and give a quilted appearance.

An alternative to fusible fleece is sew-in fleece, which doesn’t have adhesive on either side. This type of fleece is often used in quilting projects or when a softer, less structured feel is desired. Sew-in fleece is typically stitched onto fabric layers using a sewing machine.

Fusible web is another type of non-fusible material that’s often used in appliqué work. It consists of a thin layer of adhesive that’s activated by heat. Fusible web is used to bond fabric shapes together, creating decorative designs on garments, quilts, or home decor projects.

In summary, non-fusible materials such as fusible fleece, sew-in fleece, and fusible web have specific uses in sewing and crafting projects. They provide added structure, warmth, or decorative elements to various designs, depending on the desired outcome.


Made of high-quality core-spun polyester, this thread is known for it’s durability and ability to withstand frequent washes and strain. It’s the ideal choice for projects that require strong and long-lasting stitches, such as garments, home decor items, and accessories. Whether you’re a professional seamstress or a hobbyist, this non-fusible thread will undoubtedly meet your sewing needs and ensure the longevity of your creations.

Scroll to Top