In cable manufacturing, reliable internal insulation, mechanical reinforcement, and cost-effective layer separation are essential for maintaining electrical integrity and long-term performance. PET Polyester Tape, commonly known as Mylar Tape, is a premium biaxially oriented polyester (BOPET) film tape engineered specifically for the cable industry. Produced from high-grade polyethylene terephthalate (PET) resin, this versatile tape delivers exceptional tensile strength, outstanding dielectric properties, and superior thermal stability — making it the ideal choice for longitudinal or helical wrapping, binding, shielding isolation, and mechanical protection across a wide range of cable constructions.
As a trusted B2B supplier of complete cable materials and technical solutions with over 30 years of global experience, we recognize PET Polyester Tape as a lightweight, high-performance insulation material that enhances cable durability while optimizing production efficiency and total cost of ownership in signal transmission, data, coaxial, control, instrumentation, and power cable applications.
Composition & Engineered Manufacturing Process
PET Polyester Tape is manufactured from premium-grade PET resin that undergoes biaxial orientation to create a highly crystalline, dimensionally stable film. Key characteristics include:
- Base material: Biaxially oriented polyethylene terephthalate (BOPET) film — known for its high molecular alignment and uniformity.
- Thickness range: Typically 0.025–0.1 mm (custom options available up to 0.25 mm).
- Surface options: Transparent, bright silver/metallized, or matte finishes for visual identification and enhanced reflectivity.
Precision slitting ensures clean edges and tight tolerances, enabling seamless integration into high-speed cable wrapping lines. When required, acrylic or silicone adhesives can be applied for self-adhesive versions, providing strong yet residue-free bonding to conductors, shields, or jackets.

Principaux avantages techniques et gains de performance
Exceptional Mechanical Reinforcement High tensile strength (typically 150–300 MPa or 80–150 N/cm) combined with excellent elongation ensures reliable binding and wrapping without cracking or stretching during high-speed production. The tape adds structural integrity to cable cores while maintaining overall flexibility.
Superior Electrical Insulation Outstanding dielectric strength (≥5–8 kV/mm, with breakdown voltages up to 5.5 kV or higher depending on thickness) provides effective isolation between conductors, shields, and layers. Low dissipation factor minimizes signal loss in high-frequency applications such as coaxial and RF cables.
Stabilité thermique et environnementale
- Melting point: Approximately 250–255°C
- Continuous operating temperature: Up to 150–180°C (Class F rating in many grades)
- Excellent resistance to moisture absorption (<0.5%), UV radiation, chemicals, solvents, humidity, and thermal aging.
Flame-retardant grades are available to meet stringent fire safety requirements in specialty cables.
Processing Efficiency & Clean Application Easy to tear and apply with no residue, the tape features uniform thickness and precision-slit edges that reduce waste and ensure smooth, wrinkle-free wrapping. Its bright silver or transparent appearance aids quality inspection on the production line.
Cost-Effective & Sustainable Lightweight design reduces overall cable weight compared to thicker alternatives, supporting lower material costs and easier installation while remaining fully recyclable.

Principales applications dans les systèmes de câbles
PET Polyester Tape (Mylar Tape) is widely specified for:
- Signal Transmission, Data & Instrumentation Cables: Binding and separation layers to maintain pair geometry and electrical isolation.
- Coaxial & RF Cables: Internal wrapping for dielectric support and shielding isolation.
- Control & Power Cables: Mechanical reinforcement and additional dielectric strength between conductors and shields.
- Câbles spéciaux: Composite constructions requiring smooth, uniform layers for improved flexibility and long-term reliability in industrial, automotive, aerospace, and renewable energy applications.
It excels in longitudinal or helical wrapping where a thin, high-strength insulating barrier is needed without adding significant bulk.

Spécifications techniques

Normes de fabrication et assurance qualité
The product fully complies with:
- GB/T 13542.1-2009 (Polyester film for electrical insulation)
- GB/T 2951.11-2008 (Common test methods for insulating and sheathing materials of electric and optical cables)
Every batch undergoes rigorous testing for mechanical, electrical, thermal, and dimensional properties to ensure consistent quality and full traceability.

Packaging & Storage for Optimal Performance
PET Polyester Tape is available in two convenient formats:
- PAD Type: Inner diameter 53 mm (2″) or 76 mm (3″), max outer diameter 650 mm, width 5–1300 mm, paper or plastic core.
- Type de bobine: Inner diameter 76 mm (3″), max outer diameter 500 mm, max width 400 mm, paper core.
Store at room temperature in a dry environment, away from direct sunlight, pollution, and mechanical forces to preserve optimal performance.
Reliable Insulation & Reinforcement for Modern Cable Designs
PET Polyester Tape (Mylar Tape) combines high tensile strength, superior dielectric properties, and excellent thermal/chemical resistance to deliver a versatile, cost-effective solution for insulation, wrapping, and mechanical reinforcement in signal, coaxial, control, and power cables. Its precision engineering and consistent quality make it indispensable for manufacturers seeking long-term cable reliability and efficient production.
For cable manufacturers and EPC contractors focused on qualité fiable, solutions techniques personnalisées, et valeur du partenariat à long terme, this material ensures your cables meet stringent performance requirements while optimizing costs and sustainability.
Demande d'informations to request detailed technical data sheets, samples, custom specifications, or competitive bulk quotations tailored to your production line and cable designs. Our expert team provides full technical consultation and one-stop material solutions that strengthen your competitive advantage in global cable markets.
PET Polyester Tape (Mylar Tape) – Reliable Cable
PET Polyester Tape (Mylar Tape) offers exceptional tensile strength, electrical insulation and thermal stability for wrapping, binding and shielding in communication, coaxial, control and power cables. High-performance BOPET film.
SKU du produit: PET Polyester Tape
Marque de produit: Machines RLB
Devise: USD
Prix du produit: Contactez-nous pour un devis
Produit en stock: En stock
Note de l’éditeur/éditrice : 4.85
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