Main Application Fields of High-Tensile PTFE High-Temperature Cloth

Jiangsu Aokai New Materials, a professional manufacturer of PTFE high-temperature cloth, shares industry insights. High-tensile PTFE high-temperature cloth is a composite material manufactured by impregnating or coating polytetrafluoroethylene (PTFE) onto high-strength fiberglass fabric substrates. It combines outstanding tensile strength of fiberglass with PTFE’s merits including high temperature resistance, non-stick property, chemical corrosion resistance and low friction coefficient. The "high tensile strength" is generally achieved by thicker yarns, high-density weaving or special reinforcement treatments, enabling the cloth to withstand greater tension and tearing force under harsh working conditions.

1. Industrial Conveying & Packaging Machinery

This is the core and most extensive application field for high-tensile PTFE cloth, where tensile strength and flex fatigue resistance are highly prioritized.

· Heat shrink packaging machines: Applied as protective cloth for L-type sealing and cutting blades or conveyor belts. It bears repeated contact with high-temperature blades and high-speed stretching; high tensile strength ensures long service life and dimensional stability without deformation.

· Food baking & drying lines: Serving as conveyor belts for biscuits, bread and other food products. High tensile strength prevents deviation and elongation during wide-width, long-distance conveying, while the non-stick surface enables easy cleaning.

· Textile printing & dyeing dryers: Used as stenter and printing conveyor belts. The cloth endures continuous mechanical tension and fabric friction under high heat; superior tensile performance guarantees smooth stable operation.

· Paper & film drying: Acts as high-temperature non-stick carrier belts for paper coating and plastic film stretching production lines.

2. Demolding & Composite Material Manufacturing

Leveraging its non-stick performance, high tensile strength and dimensional stability as process consumables and isolation layers.

· Composite molding: Used as release cloth for compression molding or vacuum bag molding of carbon fiber, fiberglass reinforced plastic and other advanced composites. Its high tensile strength avoids fragmentation during peeling, and leaves a slightly rough surface on finished products to facilitate secondary adhesive bonding.

· Adhesive tape & wood-based panel industry: Serves as non-stick cushion liners between hot press platens and workpieces, bearing massive pressing force and frequent stripping; high tear strength is an essential requirement.

3. High-Temperature Welding & Thermal Protection

· Welding protective curtains & blankets: Made into translucent or brown curtains to block welding sparks and high-temperature splashes. High tensile strength prevents penetration and tearing by molten debris.

· Equipment thermal insulation jackets & expansion joints: Used as outer cladding for detachable thermal insulation jackets or inner liners for flexible pipeline expansion joints, enduring repeated mechanical expansion and contraction as well as impact of high-temperature air flow.

· Fire resistant rolling shutters & barriers: For building and industrial fire partition applications; high tensile strength supports large-span layout and strong wind resistance.

4. Electrical & Electronic Insulation

Combining superior dielectric strength and mechanical robustness.

· Interlayer insulation for motors and transformers: Deployed as insulating gaskets between coils and layers of high-temperature motors and dry-type transformers. It withstands tension during coil winding while resisting high voltage and continuous heat.

· Heater insulation wrapping: Wraps electric heating wires and tubes; high tensile strength ensures intact tight winding and long-term operational safety.

5. Construction & Structural Engineering

This is a distinctive yet vital application, taking advantage of ultra-low friction coefficient, high load-bearing capacity and weather resistance.

· Sliding layers for building bearings: Paired with stainless steel plates for bridge bearings and grid structures to form sliding pairs, releasing massive stress induced by temperature variation and seismic activity. Compressive strength and interlayer shear strength of the cloth are critical indicators here.

· Pipeline supports & hangers: Used as low-friction sliding gaskets between pipelines and brackets, accommodating large displacement caused by thermal expansion and contraction of high-pressure pipelines.

6. Chemical & Heavy Corrosion Environments

Integrating excellent chemical resistance with high mechanical strength.

· Filtration materials: Fabricated into filter bags or support sleeves for high-temperature, heavily corrosive flue gas filtration (municipal waste incineration, calcium carbide furnaces). High tensile strength prevents breakage under frequent pulse ash cleaning vibration.

· Valve & sealing components: Applied as diaphragms and gaskets for corrosive media; high tensile strength avoids extrusion and permanent deformation of sealing surfaces under high pressure.

The above technical content is provided by Jiangsu Aokai New Materials Technology Co., Ltd.

If you want to obtain detailed specifications, application scenarios and customized solutions for our full product range including PTFE high-temperature cloth, PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, seamless heat press belt, single-sided PTFE fabric, high-temperature resistant conveyor belt and heat-resistant fiberglass cloth, please contact us via the channels below:

· Service Hotline: Mr. Guo +86 18944819998

· Service Hotline: Mr. Liu +86 13705266308

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