Glass Fiber Nonwoven Fabric (including glass fiber polyester composite mat)

I. Core Product Features: Precise integration of material properties and process advantages

Relying on the inorganic performance advantages of glass fiber and the technological support of spunlace and composite processes, the two types of products respectively form unique performance systems, and at the same time break through the performance limitations of a single material

(1) Glass fiber non-woven fabric: The performance benchmark of inorganic substrates

Using alkali-free glass fiber as the single raw material, it is formed through short-cutting dispersion and high-pressure water jet entanglement. While retaining the essential characteristics of glass fiber, it also has the flexible structural advantages of non-woven fabric:

High-temperature resistant, flame-retardant and insulating: The foundation of safety in extreme environments

Wide temperature range stable operation: The melting point of glass fiber exceeds 800℃, and the finished product can be used for a long time in an environment of 260℃, with a short-term temperature resistance of up to 300℃, far exceeding the heat resistance limit of polyester fiber (temperature resistance ≤150℃). It does not require the addition of flame retardants, with a limiting oxygen index (LOI) of ≥30%. It does not burn or melt and drip when exposed to fire, maintaining only the integrity of the inorganic fiber structure. It is a core protective material for high-temperature working scenarios. ​

Industry-leading insulation performance: It naturally possesses excellent electrical insulation properties, with a dielectric strength of ≥20kV/mm. Even at a high temperature of 130℃, its insulation strength remains above 70%, and it is not affected by humidity or chemical media. This solves the pain points of organic insulation materials such as "high-temperature aging and moisture failure", and is suitable for the strict requirements of the electronics and power fields. ​

2. High strength + corrosion resistance: Durable guarantee in harsh environments

Outstanding mechanical properties: The tensile strength of the fiber reaches over 3000MPa. After being spunlace and three-dimensional entanglement, the longitudinal breaking strength is ≥1350N/50mm (for the 850g/㎡ specification), and it has excellent dimensional stability. The deformation rate in wet and hot, cold and hot alternating environments is ≤0.5%, far exceeding the structural stability of traditional chemical fiber non-woven fabrics. ​

No shortcomings in corrosion resistance and aging resistance: It has good resistance to most acid and alkali media (such as 10% sulfuric acid, 15% sodium hydroxide) and organic solvents. The strength loss rate after soaking for 30 days is ≤10%. Moreover, the inorganic components determine that it does not age or degrade. There is no brittleness after five years of outdoor exposure, and its service life is 5 to 8 times that of organic fiber materials. ​

3. Porous structure + flexible processing: The foundation for adapting to diverse scenarios

The functional structure can be customized: The non-directional three-dimensional micro-porous structure formed by the spunlace process has a porosity of 70%-80% and a air permeability of 8-16m³/(m² · min). The filtration accuracy and insulation effect can be customized by adjusting the gram weight (450-2250g/㎡) and thickness (3-15mm), meeting the needs of all scenarios from precision filtration to heavy-duty insulation. ​

Excellent processing adaptability: Compared with traditional glass fiber needled felt, the spunlace process avoids fiber damage, making the product feel softer. It can be directly cut, sewn, and hot-pressed into shape, meeting the bonding requirements of complex-shaped components and broadening the application possibilities in fields such as automotive interiors and home appliance insulation. ​

(2) Glass Fiber Polyester Composite Mat: Performance Breakthrough of Dual-material Synergy

It is made by blending glass fiber with high-temperature resistant polyester fiber and then impregnating and curing it, precisely compensating for the defect of a single material and achieving multi-dimensional optimization of "strength + toughness + processability".

1. Complementary performance without any weaknesses

Solving the defect of a single material Glass fiber provides high strength and dimensional stability, while polyester fiber endows the material with flexibility and tear resistance. After compounding, the product not only overcomes the problems of "no extensibility and easy tearing" of glass fiber mat, but also solves the shortcomings of "high-temperature deformation and insufficient strength" of polyester mat. The tear resistance strength is 40% higher than that of pure glass fiber mat. The elongation at break can reach more than three times that of pure glass fiber mat. ​

Process compatibility upgrade: The fibers are tightly entangled and retain a certain degree of elasticity. The resin penetration rate is 30% higher than that of pure glass fiber mat. In processes such as FRP molding, the number of layers can be reduced, and the production efficiency can be increased by more than 25%. At the same time, the smoothness of the finished product surface is significantly improved, meeting the appearance and performance requirements of high-end composite materials. ​

2. All-scenario weather resistance + cost optimization

Comprehensive environmental tolerance: Inheriting the high-temperature resistance (long-term temperature resistance up to 180℃) of glass fiber and the corrosion resistance of polyester fiber, it can withstand ultraviolet rays, rain erosion and temperature fluctuations in outdoor scenarios such as roads and Bridges, with a service life of over 15 years. Moreover, its water absorption rate is ≤0.5%, and it does not mold or lose strength in a humid environment, meeting the long-term requirements of infrastructure projects. ​

The cost performance advantage is significant: Through the reasonable proportion of polyester fibers, the comprehensive cost is reduced by 20%-30% compared with pure glass fiber mat while ensuring the core performance. At the same time, the mass production processing loss rate is less than 3%, which is much lower than the processing loss of pure glass fiber materials (usually 5%-8%), making it the preferred solution for batch application scenarios such as infrastructure and industry. ​

Ii. Main application Fields: Full coverage of scenarios from basic engineering to high-end manufacturing

Relying on their differentiated performance advantages, the two types of products have respectively formed irreplaceable application values in multiple fields, precisely adapting to the core demands of different scenarios:

1. Construction and infrastructure field: Core materials for long-term projects

Glass fiber non-woven fabric: As the insulation material for the interlayer of color steel plate houses and the insulation layer of thermal pipelines, its insulation effect is 30% better than that of traditional rock wool, and it is convenient to install and does not cause dust pollution. In the ground base of electronic factories, it can play a dual role of insulation and moisture-proofing, ensuring the electrical safety of the factory building. ​

Glass fiber polyester composite mat: Widely used as an anti-cracking reinforcing layer on the surfaces of expressways, airport runways, and Bridges, it can inhibit pavement shrinkage cracks and prevent water penetration, extending the service life of the project by 5 to 8 years and reducing later maintenance costs by more than 40%. It is also compatible with the fiberglass reinforced plastic hand lay-up molding process and can be used as a reinforcing base material for components such as building curtain walls and skylights, enhancing structural strength and wind load resistance. ​

2. Industrial and environmental protection fields: Essential solutions for extreme working conditions

Glass fiber non-woven fabric: In high-temperature flue gas filtration in industries such as steel, chemical engineering, and incineration, it can efficiently retain fine dust in an environment of 260℃, with a filtration accuracy of 0.5μm, a dust removal efficiency of ≥99.5%, and a service life of 6 to 12 months, which is more than twice that of PPS filter material. As the inner core material of mufflers for automobiles and motorcycles, it has a remarkable sound absorption and noise reduction effect, which can reduce engine noise by 15-20dB. ​

Glass fiber polyester composite mat: It is used for flexible sealing and wear-resistant lining of industrial equipment, combining the strength of glass fiber and the elasticity of polyester fiber. It can withstand high-frequency friction during equipment operation, and its wear rate is 50% lower than that of pure glass fiber mat. In the field of sewage treatment, as a substrate for biofilm carriers, its porous structure and corrosion resistance can enhance the adhesion of microorganisms and the stability of the system. ​

3. Electronics and power fields: The core of protection in precision scenarios

Glass fiber non-woven fabric: As an insulating pad and coil wrapping material for transformers and motors, it maintains stable insulating performance at a high temperature of 130℃ and contains no volatile substances, meeting the clean standards of the electronics industry. The insulation layer for the wall panels of household appliances such as microwave ovens and dishwashers can prevent the internal high temperature from being transferred to the outside, enhancing the safety of product use. ​

Glass fiber polyester composite mat: After being impregnated and cured with resin, it can be used as the reinforcing base material for printed circuit boards, featuring both insulation and mechanical strength. Moreover, it is not prone to deformation during processing, making it suitable for the production requirements of precision electronic components. In the battery packs of new energy vehicles, as an insulating and flame-retardant layer, it can effectively prevent the spread of thermal runaway and enhance the safety of the battery system. ​

4. Transportation and special fields: Performance Support for high-end equipment

Glass fiber non-woven fabric: In the interiors of automobiles and ships, it is used as a sound insulation and heat insulation material, which can reduce the noise inside the vehicle by 8-12dB, and at the same time withstand the high-temperature radiation in the engine compartment. In the aerospace field, fireproof linings used for cabin interiors do not release toxic gases when exposed to fire and comply with international aviation safety standards. ​

Glass fiber polyester composite mat: It is used as the pultrusion base material for fiberglass reinforced plastic ship hulls and car bodies. The fibers are not prone to displacement or deformation, which can reduce the number of layers and increase production efficiency by 30%. In the manufacturing of wind turbine blades, as a reinforcing layer material, it combines high strength and fatigue resistance, meeting the long-term outdoor operation requirements of wind power generation equipment. ​

About Yongdeli: Professional manufacturer of glass fiber base materials

Changshu Yongdeli Spunlace Nonwoven Fabric Co., Ltd. possesses an integrated production line for glass fiber spinning, spunlace forming and composite processing, and can provide the following customized products:

Glass fiber non-woven fabric: Weight 150-2200g/㎡, width 0.2-3.2m, supports post-treatment such as singeing and calendering, suitable for multiple scenarios including heat preservation, filtration and insulation. ​

Glass fiber polyester composite mat: Adjustable polyester fiber content from 10% to 50%, tensile strength ≥1500N/5cm, supports resin impregnation customization, suitable for infrastructure reinforcement, composite material molding and other requirements. ​

​If you need to know about product samples or customized solutions, please feel free to contact us.