Product Specifications:
Thickness | Width |
0.03-0.15mm | 510-1500mm |
Product Color: Can be customized according to customer needs (minimum order quantity is 6 tons).
I. Product Introduction:
Our factory produces electrical polyester fiber nonwoven fabric (7031), which is made from polyester staple fiber (PET) using a thermal bonding method and mechanically carded into a web, resulting in oriented fiber distribution.
It features high heat resistance, excellent impregnation and dielectric properties, a uniform and smooth fabric surface, small thickness deviation, high tensile strength, and a neat appearance.
II. Specific Requirements:
1. Appearance:
The surface of the nonwoven fabric should be uniform and flat, neatly rolled, and free from damage and contamination. Neps and fiber bundles are permissible within the thickness tolerance range.
2. Dimensions:
(1) 7031 nonwoven fabric is supplied in rolls, each roll having a diameter of not less than 250mm, with no more than three sections per roll, the smallest section being not less than 100mm, and each section clearly marked. The inner diameter of the paper tube is 76mm.
(2) The maximum width of 7031 nonwoven fabric is 1560mm, with a permissible deviation of ±5mm.
(3) The thickness and permissible deviation of 7031 nonwoven fabric should conform to the provisions of Table 1.
(4) Other sizes and specifications of nonwoven fabric can be specified according to the contract.
(5) The physical and mechanical properties of the nonwoven fabric should conform to the relevant provisions of Table 1.
Table 1
Number | Performance | Unit | Required nominal thickness (mm) | 0.03 | 0.035 | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.1 | 0.12 | 0.13 | 0.15 | |
1 | Quantitative | g/㎡ | 21 | 24 | 28 | 35 | 42 | 49 | 56 | 70 | 85 | 91 | 100 | ||
2 | Quantitative Inequality | ％ | ≤10 | ||||||||||||
3 | Apparent density | g/cm² | 0.65±0.10 0.70±0.10 | ||||||||||||
4 | Tensile strength | Vertical | N/50mm | ≥30 | ≥35 | ≥40 | ≥60 | ≥70 | ≥80 | ≥90 | ≥100 | ≥150 | ≥200 | ≥240 | |
Horizontal | Width | ≥6 | ≥8 | ≥10 | ≥20 | ≥22 | ≥25 | ≥27 | ≥30 | ≥50 | ≥70 | ≥100 | |||
5 | Elongation at break | Vertical | ％ | ≥6 | ≥6 | ≥6 | ≥6 | ≥6 | ≥8 | ≥8 | ≥10 | ≥10 | ≥10 | ≥10 | |
Horizontal | ％ | ≥3 | ≥3 | ≥3 | ≥3 | ≥3 | ≥5 | ≥5 | ≥5 | ≥5 | ≥8 | ≥8 | |||
6 | Thermal shrinkage rate | ％ | ≤4 ≤3 | ||||||||||||
Remark | Heat shrinkage test conditions：150℃，1 hour | ||||||||||||||
III. Physical and Mechanical Properties of 7031 Nonwoven Fabric
1. Packaging: Each roll of nonwoven fabric is wrapped in a plastic film, then an outer waterproof woven bag. The ends of the core are sealed with corresponding plastic cores. The inner tube is a 1.8cm thick high-pressure paper tube.
2. Marking: The outer packaging bag should be marked with the manufacturer, product name, model, specifications, batch number, net weight, production date, etc.
3. Storage: 7031 nonwoven fabric should be stored in a cool, dry, clean, and well-ventilated warehouse below 40℃. It should not be near fire sources or heating, and should not be exposed to direct sunlight. The shelf life is one year.
IV. Scope of application:
Widely used in composite materials (DMD, DM, DMDM), mica tape reinforcing materials, electrical laminates, insulating varnish cloth base fabric, and end wrapping of electrical appliances, transformers, and motor coils. It is also suitable for small and flexible cables, household electrical cables, communication optical cables, and can replace various types of paper insulation materials.
Electrical Flame-Retardant Nonwoven Fabric is a high-performance material engineered specifically for insulation, protection, and fire safety in electrical and industrial applications. Unlike woven or knitted textiles, nonwoven fabrics are created by bonding fibers directly, producing a uniform, strong, and lightweight material with excellent thermal and mechanical properties. This type of fabric is designed to provide both dielectric insulation and flame-retardant protection, making it ideal for use in transformers, motors, generators, switchgear, high-voltage equipment, and automotive electrical systems.
Typically composed of high-quality synthetic fibers such as polyester (PET) or polypropylene (PP) with flame-retardant additives, electrical flame-retardant nonwoven fabrics can withstand high temperatures and prevent the spread of fire. They are engineered for durability, mechanical strength, moisture resistance, and chemical stability. The material can be customized for specific thickness, density, and surface properties to meet demanding industrial and electrical standards.
Electrical flame-retardant nonwoven fabrics are widely used in industries that require reliable insulation, fire safety, and thermal management. With an increasing focus on safety compliance, eco-friendly manufacturing, and regulatory standards such as RoHS, REACH, and UL certification, these fabrics have become essential components in electrical, automotive, and industrial applications.
Electrical flame-retardant nonwoven fabrics are manufactured to precise specifications to ensure safety, reliability, and performance:
Material Composition: 100% polyester (PET), polypropylene (PP), or blended fibers with flame-retardant treatment
Manufacturing Process: Thermal bonding, needle punching, spunbonding, or hydroentangling
Fabric Weight: 40 g/m² – 400 g/m², adjustable based on application needs
Thickness: 0.2 mm – 5 mm, customizable for insulation, protection, or fire safety requirements
Fiber Orientation: Random or oriented to optimize tensile strength
Tensile Strength: High longitudinal and transverse strength for durability and structural integrity
Dielectric Strength: Excellent insulation performance under high voltage
Thermal Resistance: Continuous operation up to 150°C; resistant to high short-term heat spikes
Flame Retardancy: UL 94 V-0 or equivalent fire-retardant standards
Moisture Resistance: Low water absorption to maintain electrical and thermal performance
Color: Natural white, grey, or customizable according to industrial standards
Eco Compliance: Recyclable, RoHS and REACH compliant
These specifications ensure that electrical flame-retardant nonwoven fabrics are suitable for a broad range of applications requiring fire-safe insulation and protective performance.
Electrical flame-retardant nonwoven fabric is highly versatile and used across multiple industries where insulation, fire safety, and thermal protection are critical:
Transformer and generator insulation
Motor insulation and winding separation layers
High-voltage equipment dielectric barriers
Thermal and fire protection for battery packs, power supply units, and electronic devices
Battery compartment insulation for electric and hybrid vehicles
Wire harness protection with flame-retardant safety
Cabin insulation and vibration damping
Fire-resistant interior linings and protective layers
Insulation for electrical panels, switchgear, and machinery
Protective layers in industrial electronics
Reinforcement in composite materials requiring flame retardancy and dielectric properties
Air and liquid filtration with dielectric and flame-retardant properties
Oil-absorption pads and industrial spill control materials
Cleanroom and laboratory fire-safe insulation
Electrical insulation in adapters, chargers, and power electronics
Fire-resistant protective layers for sensitive devices
Thermal management in electronics requiring safety compliance
Flame-retardant insulation for public buildings and fire-safe installations
Moisture-resistant insulation for humid or industrial environments
High-temperature fire-safe fabrics for power generation and manufacturing industries
This broad range of applications demonstrates the material’s versatility and essential role in industries requiring insulation, safety, and reliability.
Proper handling and installation are critical to maintaining the performance and fire-retardant properties of electrical flame-retardant nonwoven fabrics:
Cutting and Shaping:
Use sharp scissors, rotary cutters, or laser cutting tools for precise edges. Avoid stretching to maintain fiber orientation and dielectric performance.
Layering and Lamination:
Stack multiple sheets as required to meet insulation, thickness, and fire safety specifications. Heat lamination or adhesive bonding may enhance structural stability.
Cleaning:
Keep fabrics free from dust, oil, and chemical contaminants prior to installation. Use compressed air or soft brushes for surface cleaning.
Storage:
Store rolls in a cool, dry, ventilated area away from direct sunlight, high humidity, and extreme temperatures to preserve dielectric and flame-retardant properties.
Safety Precautions:
Wear protective gloves when handling large rolls. Avoid inhaling fine fibers during cutting or processing, although most synthetic fibers are non-toxic.
Q1: What makes electrical flame-retardant nonwoven fabric superior to standard nonwoven insulation materials?
A1: It combines dielectric insulation with flame-retardant properties, providing both electrical safety and fire protection in high-risk applications.
Q2: Can the fabric be customized for different electrical and fire safety requirements?
A2: Yes. Thickness, weight, fiber composition, flame-retardant treatment, and surface properties can all be tailored for specific applications.
Q3: What flame-retardant standards does it meet?
A3: Many products meet UL 94 V-0 or equivalent international fire safety standards. Custom certifications can also be provided depending on client needs.
Q4: Is it suitable for high-humidity or industrial environments?
A4: Yes. Polyester and polypropylene fibers with flame-retardant additives have low moisture absorption and chemical stability, maintaining performance in harsh environments.
Q5: How should it be installed to maximize fire safety and insulation?
A5: Layers should be stacked according to design specifications. Adhesive or heat bonding can enhance stability, and care should be taken to avoid compressing the material excessively.
Q6: Is this material environmentally friendly?
A6: Many electrical flame-retardant nonwoven fabrics are recyclable, RoHS and REACH compliant, and produced using energy-efficient methods.
Q7: Can it be used in automotive electrical systems?
A7: Absolutely. Its thermal resistance, mechanical strength, flame-retardant properties, and flexibility make it ideal for battery insulation, wire harness protection, and motor insulation in electric and hybrid vehicles.
Lightweight, flexible, and durable
High dielectric strength and fire-safe insulation
Excellent thermal resistance and dimensional stability
Moisture and chemical resistant
Customizable for weight, thickness, fiber type, and flame-retardant standards
Eco-friendly and recyclable
Versatile across electrical, automotive, industrial, and consumer applications
Enhances safety in high-risk electrical installations
Electrical Flame-Retardant Nonwoven Fabric is a versatile, high-performance material engineered for insulation, thermal management, and fire safety. Its combination of uniform fiber structure, dielectric properties, mechanical durability, and flame-retardant performance makes it indispensable for transformers, motors, generators, automotive electrical systems, industrial machinery, and consumer electronics. Proper handling, installation, and storage ensure long-term reliability, safety, and performance. With customizable specifications, regulatory compliance, and environmentally responsible production, electrical flame-retardant nonwoven fabric is a leading choice for manufacturers, engineers, and designers seeking durable, safe, and efficient insulation solutions.
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