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Innovator In Fiberglass Yarn Production 
For Over 20 Years
Realize Your Vision With Superior Quality And Breakthrough Solutions
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Purchase Fiberglass Yarn From Yuniu

Our offer CE-compliant, versatile, and customizable fiberglass yarn to help you build your project.
Fiberglass yarn are made by melting glass and forcing it through tiny openings called spinnerets, bringing the resulting fibers together to form yarns with exceptional strength, heat resistance, electrical insulation and moisture resistance.

From the application point of view, fiberglass yarn is widely used in the production of fiberglass woven roving and fiberglass mesh, wire and cable coating, braided sleeve, fuse, and insulating materials for making motor and electrical windings.

Find The Best Specification For Your Project

Our fiberglass yarn are available in a variety of gauges, enabling you to precisely match your project, ensuring optimum performance and meeting your specific needs.
Type Glass Filament Diameter Type in U.S.A Twist Degree
Fiberglass Yarn
YNFY001 EC9-33X1X2 E 9um ECG 150 1/2 S65
YNFY002 EC9-33X1X3 E 9um ECG 150 1/3 S65
YNFY003 EC9-33X2X3 E 9um ECG 150 2/3 S110
YNFY004 EC9-68X1X0 E 9um ECG 75 1/0 Z28-35
YNFY005 EC9-68X1X2 E 9um ECG 75 1/2 S28-110
YNFY006 EC9-136x1x0 E 9um ECG 37 1/0 Z28-35
YNFY007 EC9-136x1x2 E 9um ECG 37 1/0 S28-110
YNFY008 EC5.5-12X1X0 E 5.5um ECD450 1/0 S40
YNFY009 EC5.5-12X1X2 E 5.5um ECD450 1/2 S40
YNFY010 CC9-33X1X2 C 9um CCG150 1/2 S28-100
YNFY011 CC9-33X2X2 C 9um CCG 150 2/2 S28-100

Unique Features And Benefits Of YuNiu Fiberglass Yarn

Our versatile fiberglass yarn can meet the needs of your diverse projects, guaranteeing superior performance and cost-effectiveness.

Experience The Power Of Fiberglass Yarn Enhanced Structures

Whether you are using it for weaving fiberglass mesh, electronic cloth or wire and cable coating, electrical Insulation, etc., Yuniu can provide products that meet your specific needs.
Customized Fiberglass Yarn for Your Needs
Let your imagination run wild as we transform your ideas into tangible, high-quality fiberglass yarn solutions.

  • ​​​​​​​​​​​​​​Product
    ​​​​​​For customers,who are not familiar with the product, we will provide relevant training course guidance.
    For traders, we will provide you with a complete product solution.
    For manufacturers, we will recommend specifications suitable for your project, provide technical parameters, etc.​​​​​​​
  • Product
    We offer a range of product customization options to ensure our products meet your specific needs.

    Including roving length, diameter and TEX, surface treatment, resin compatibility and special specification customization.​​​​​​​
  • Packaging
    Whether you need carton packaging, woven packaging, tube packaging, tray packaging.

    Or other additional custom packaging (special labels, branding, etc.)

    We can all make your vision a reality.
  • Free Sample
    We can provide you with free samples for testing, and you can accurately detect them in your own environment.

    Whether our products are suitable for your project needs, we will make corresponding improvements based on your test feedback.

Ask Your Fiberglass Yarn Expert

Help you choose the most suitable and valuable product to complete your project!

Establish Uncompromising Quality Standards

From careful selection of high-quality raw materials to strict quality control inspections, no detail is overlooked.
Raw Material  
We use high-quality raw materials with consistent performance, and carefully select, wash, dry, cut and other processes to achieve the required length and purity to ensure the production of high-performance glass fiber roving.
 Packaging With Pallet
For large quantities of yarn we use pallet packaging where the wound yarn packages are stacked and arranged on wooden or plastic pallets for stability and to minimize the risk of yarn damage during loading, unloading and transport.
Fiber Drawing 
During this process, we use advanced fiber drawing technology and machinery to heat the glass to a molten state and then stretch it into fine continuous filaments, precisely controlling the fiber diameter and tensile strength to ensure its uniformity and strength.
 Plastic Packaging
After the yarn is wound on the spool, it is usually wrapped in a plastic bag or sleeve for protection, which helps protect the yarn from dust, moisture and other contaminants during storage and transport.
Fiber Coating  
Once the fiber is drawn, it is coated with various materials to enhance its performance and handling characteristics, help protect the fiber during subsequent processing steps, and improve its compatibility with the matrix material in composite applications.
 Yarn Coiling
At this stage, we employ automated yarn winding equipment to ensure that the yarn is wound onto spools or bobbins precisely, consistently and evenly, often in a specific pattern or arrangement to facilitate handling and further processing.
Fiber Forming  
Once the fibers are coated, they are gathered and assembled into bundles called rovings, using state-of-the-art fiber forming techniques to ensure consistent fiber alignment and distribution throughout the roving.
Once the roving is formed, it passes through a heated chamber or oven where controlled temperature and airflow ensure thorough drying, we implement precise drying parameters to maintain fiber integrity and minimize the risk of defects.
Operating in 126 countries and supplying the highest quality materials to over 1000 customers worldwide, we value the trust you place in us and are committed to helping you succeed. As part of our family of satisfied clients, you will receive personalized support and tailored solutions to move your project forward.
Exported To 126 Countries, 1000+ Partners
From North America to Europe, from Asia to Africa, our products meet the diverse needs of different projects.

Our Extraordinary Performance At The Exhibition

Building Global Connections: Tailoring Solutions for a Diverse Client Base.
  • JEC Composites Show
    JEC Composites Show is the leading international trade fair dedicated to the field of composites. It show provides us with an unparalleled opportunity to showcase our high-quality solutions, establish business contacts and expand our presence in the global fiberglass market.
  • Dubai BIG5
    BIG5 Dubai, the largest construction event in the Middle East, provides a great opportunity for networking and business development and collaboration within the construction industry, as we showcase our capabilities in high quality and reliable fiberglass mesh for a variety of buildings.
  • Canton Fair
    The China Import and Export Fair is one of the largest and most informative trade fairs held in China. Our stand attracts a diverse audience, from customers to industry experts and exhibitors, and we take great pride in the exceptional quality and performance of our products.
  • Canton Fair
    Attracting international buyers and exhibitors from different industries, Canton Fair brings together professionals in fiberglass and related industries to discuss the latest innovations. Allows us to showcase our products to a global audience and explore potential partnerships.
  • JEC Composites Show
    JEC Composites Show brings together key players from all over the world, by participating in JEC Composites Show, we have the opportunity to meet professionals from various industries, network with potential customers, and gain valuable insights into the latest developments and trends in composites.
  • BUA Exhibition
    The BAU Exhibition is one of the world's leading trade fairs for construction, materials and construction-related systems. At the show we share our knowledge and expertise, highlight our product quality and commitment to customer satisfaction, and gain valuable insights into emerging trends.

Lasting Impression: Yuniu Fiberglass Customer Visit And Trust Buildin

Experience our modern factory, professional service and sincere hospitality.

Efficient Packaging And Shipping Solutions

From strict production to safe transportation, we guarantee product integrity and timely delivery.
1. 33kg/roll for 1040mm, 40kg/roll for 1250mm/1270mm
2. The load of 20-foot container is about 10 tons, and the load of 40HQ is about 23 tons. 40HQ is more suitable for sea transportation
3. Each roll is packed in a carton, and customized packaging can also be provided according to your usage scenario
YuNiu Fiberglass supports multiple shipping methods (sea shipping, air shipping, rail shipping), we can recommend the best shipping method for you.
Delivery Detail
15 days after receiving the deposit.

Trusted Certifications For Quality Assurance

You can have full confidence in the quality and compliance of our products, we give priority to third-party testing, obtain CE, ISO9001, SGS, BV and other certifications to ensure that our products meet global standards.

Hear Real Feedback From Our Customers

Explore Yuniu fiberglass yarn to achieve customer growth.

Mart Mourit

"We are very pleased with the excellent support and high strength fiberglass yarn provided by Yuniu, prior to purchase, we conduct extensive testing to ensure the yarn meets our e-cloth production requirements, which allows us to achieve exceptional strength and durability in our composite construction. "

Oraz Orazov

"We were having trouble sourcing fiberglass yarn for our insulation business due to the complex specifications we needed, with the help of Yuniu Risa, we received detailed technical support and Guidance, and customize exclusive products according to our project requirements."

Felix Zajaro

"In 2018, the fiberglass yarn we purchased was not exactly suitable for our project due to the wrong specification of the yarn we purchased, but the Yu Niu team responded quickly and arranged a replacement shipment for us to ensure that our production was not affected. Now we have cooperated for many years gone."


Rubel Islam

"I appreciate your factory's efficient production and timely delivery of the fiberglass yarn we ordered. Your ability to meet our strict delivery deadlines without compromising quality is commendable. Hence the strong partnership between us relationship, and I look forward to our continued successful collaboration."

Frequently Asked Questions About Fiberglass Yarn

These Q&As are designed to address concerns and doubts that customers may have when considering trading with YuNiu by providing transparent information, timely support.
  • Q1:Is the fiber breakage in your fiberglass yarn easy to break?
    No, our fiberglass yarn are highly resistant to fiber breakage through optimized fiber bundling and enhanced mechanical properties, reducing the occurrence of weak points or discontinuities, ensuring the reliability and longevity of the final product.
  • Q2:Does your fiberglass yarn affect its performance due to moisture?
    Rest assured our products are specially formulated with advanced moisture barrier coatings or treatments to provide a moisture barrier. This feature ensures roving stability and performance even in high humidity environments, eliminating concerns about moisture-related defects.
  • Q3:Whether the fiberglass yarn will be entangled or difficult to distribute?
    No, our fiberglass yarn are engineered with enhanced processability, including excellent unwinding and superior tensile strength, making them easier to handle, cut and dispense during manufacturing, which reduces downtime time and increase overall productivity.
  • Q4:I am worried that your fiberglass yarn is not compatible with my resin.
    Rest assured that our fiberglass yarn are designed to be highly compatible with a variety of resin systems including polyesters, epoxies and vinyl esters, their excellent wetting characteristics and strong adhesion to resins ensure seamless composite products Integration and optimal mechanical properties.
  • Q5: What payment methods do you have?
    We recommend opting for Western Union, as it offers a more favorable handling fee. However, for new clients, we currently only accept payments through 50% T/T. On the other hand, if you have been a long-standing customer and are experiencing financial constraints, we offer the option of OA credit.
  • Q6: When can I receive the goods?
    It depends on whether you need to customize, if you don't need to customize, we can ship within 7 days if we have stock, if you don't have stock and need to customize, it will take 7~15 days!
    After delivery, you will generally receive the goods in about 45 days, but the specific time you receive the goods depends on your port, shipping date, customs clearance time and other factors.
  • Q7: What after-sales service do you provide?
    Technical Support: Our team of experts is ready to help you diagnose and resolve any technical issues or challenges you may encounter;
    Customer Support: We can provide product guidance and advice as well as order tracking and delivery updates according to your specific requirements, ensuring a smooth and hassle-free process from purchase to receipt;
Free Samples for testing your project!

50+ fiberglass product catalogue!

Product customization plan!

Problem solved solution!