Can PU coated fiberglass fabric be sewn?
Apr 03, 2026
Hey there! As a supplier of PU coated fiberglass fabric, I often get asked if this type of fabric can be sewn. Well, let's dive right into it and find out.
First off, let's understand what PU coated fiberglass fabric is. It's a composite material where a layer of polyurethane (PU) is applied to fiberglass fabric. Fiberglass is known for its strength, heat resistance, and durability, while the PU coating adds properties like water resistance, abrasion resistance, and flexibility. This combination makes it a popular choice for a wide range of applications, from industrial uses to outdoor gear.
Now, the big question: Can it be sewn? The short answer is yes, but there are some factors to consider.
The Sewing Process
When it comes to sewing PU coated fiberglass fabric, the key is to use the right tools and techniques. The fabric is relatively thick and can be a bit tough to penetrate, so you'll need a heavy - duty sewing machine. A machine with a high - speed and strong motor will make the job much easier.


For needles, opt for a sharp, heavy - gauge needle. A size 16 or 18 needle is usually a good choice. These needles are strong enough to pierce through the fabric without breaking or bending. Also, make sure the needle is sharp. A dull needle can cause the fabric to fray or the thread to break.
Thread selection is also crucial. You'll want to use a strong, durable thread that can withstand the tension and stress of sewing the fabric. Polyester thread is a great option as it has high tensile strength and is resistant to abrasion.
Challenges in Sewing
One of the main challenges when sewing PU coated fiberglass fabric is the coating itself. The PU coating can be sticky, which can cause the fabric to gum up the sewing machine. To overcome this, you can use a non - stick sewing foot or apply a little bit of sewing machine lubricant to the fabric. This will help the fabric glide smoothly under the foot.
Another issue is the tendency of the fabric to fray. Fiberglass is a fibrous material, and when cut, it can fray easily. To prevent this, you can use a heat - sealing method or apply a fray - stop solution to the edges of the fabric before sewing.
Applications of Sewn PU Coated Fiberglass Fabric
Once you've successfully sewn the fabric, there are numerous applications for it. In the industrial sector, it can be used to make conveyor belts, protective covers, and insulation materials. The fabric's heat and abrasion resistance make it ideal for these types of applications.
For outdoor enthusiasts, PU coated fiberglass fabric can be used to make tents, awnings, and backpacks. The water - resistant property of the PU coating keeps the contents dry, while the strength of the fiberglass ensures the durability of the products.
Comparing with Other Coated Fiberglass Fabrics
It's also interesting to compare PU coated fiberglass fabric with other types of coated fiberglass fabrics. For example, Silicone Coated Fiberglass Fabric is known for its excellent heat resistance and flexibility. It's often used in high - temperature applications, such as oven mitts and fire - resistant clothing.
PVC Coated Fiberglass Fabric is another popular option. It's more rigid than PU coated fabric and is commonly used in signage, banners, and inflatable structures.
Then there's the Aerogel Blanket (Felt), which is a unique material with exceptional insulation properties. While it's not exactly a sewn fabric in the traditional sense, it can be used in combination with other fabrics for insulation purposes.
Tips for Successful Sewing
Here are some additional tips to ensure a successful sewing experience with PU coated fiberglass fabric:
- Test sew on a scrap piece of fabric first. This will allow you to adjust the tension of your sewing machine and make sure the needle and thread are working well together.
- Go slow. Since the fabric is thick and tough, sewing at a slow speed will give you more control and reduce the risk of the needle breaking or the fabric bunching up.
- Keep your sewing machine clean. The sticky PU coating can leave residue on the machine, so it's important to clean it regularly to prevent any issues.
Conclusion
In conclusion, PU coated fiberglass fabric can definitely be sewn, but it requires the right tools, techniques, and a bit of patience. Whether you're using it for industrial applications or for making outdoor gear, with the proper approach, you can create high - quality, durable products.
If you're interested in purchasing PU coated fiberglass fabric for your projects, don't hesitate to reach out. We're here to provide you with the best quality fabric and answer any questions you might have. Let's start a conversation and see how we can meet your needs!
References
- "Textile Materials and Their Selection: A Guide for Industry"
- "Advanced Composites in Manufacturing"
