{"id":28592,"date":"2026-04-26T07:13:18","date_gmt":"2026-04-26T07:13:18","guid":{"rendered":"https:\/\/doingcable.com\/?post_type=product&p=28592"},"modified":"2026-08-03T12:23:13","modified_gmt":"2026-08-03T12:23:13","slug":"pet-polyester-tape-mylar-tape","status":"publish","type":"product","link":"https:\/\/doingcable.com\/fr\/produit\/pet-polyester-tape-mylar-tape\/","title":{"rendered":"Bande PET (Bande Mylar)"},"content":{"rendered":"

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<\/strong><\/a>, commonly known as Mylar Tape<\/strong>, 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 \u2014 making it the ideal choice for longitudinal or helical wrapping, binding, shielding isolation, and mechanical protection across a wide range of cable constructions.<\/p>\n

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.<\/p>\n

What is PET Polyester Tape (Mylar Tape) and Why Is It Standard in Cable Manufacturing?<\/h3>\n

PET polyester tape is a non-adhesive or lightly adhesive biaxially oriented PET film supplied in slit widths from 5 mm upward. In cable construction it is applied longitudinally or helically after cabling of the cores. Its primary functions are:<\/p>\n

    \n
  • Mechanical binding of the assembled cores to prevent looseness during subsequent armouring, sheathing or installation<\/li>\n
  • Provision of an additional dielectric barrier<\/li>\n
  • Moisture and chemical barrier<\/li>\n
  • Smooth bedding surface for metallic screens or armour<\/li>\n<\/ul>\n

    Mylar is the historical DuPont (now Mylar Specialty Films) trade name; in technical specifications the material is correctly designated as PET or BOPET film. Standard electrical grades meet the performance requirements of IEC 60674-3-2 and ASTM D5213.<\/p>\n

    Composition et proc\u00e9d\u00e9 de fabrication avanc\u00e9<\/h2>\n

    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:<\/p>\n

      \n
    • Base material<\/strong>: Biaxially oriented polyethylene terephthalate (BOPET) film \u2014 known for its high molecular alignment and uniformity.<\/li>\n
    • Thickness range<\/strong>: Typically 0.025\u20130.1 mm (custom options available up to 0.25 mm).<\/li>\n
    • Surface options<\/strong>: Transparent, bright silver\/metallized, or matte finishes for visual identification and enhanced reflectivity.<\/li>\n<\/ul>\n

      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.<\/p>\n

      \"Clear<\/p>\n

      How Cable Designers Select the Correct PET Tape Thickness and Width<\/h3>\n

      Selection follows three engineering criteria:<\/p>\n

        \n
      1. Core diameter and lay-up tension<\/strong> Larger cores and higher lay lengths require thicker film (25\u201350 \u03bcm) to withstand the tension applied by the taping head without tearing or necking.<\/li>\n
      2. Required dielectric contribution<\/strong> In low-loss or high-voltage designs the tape itself may form part of the insulation system. Designers calculate the additional breakdown voltage provided by the chosen thickness.<\/li>\n
      3. Taping equipment capability<\/strong> Modern precision pay-offs can run 12\u201315 \u03bcm film at high speed with controlled tension. Older or high-tension machines demand 23 \u03bcm minimum to avoid film breakage.<\/li>\n<\/ol>\n

        Standard slit widths for cable lines range from 10 mm to 60 mm; jumbo rolls up to 1300 mm are converted to customer width. Core diameters are normally 76 mm (3″) or 152 mm (6″).<\/p>\n

        \"Al-Pet-Aluminum-Mylar-Tape-Doingcable\"<\/p>\n

        Principaux avantages techniques et gains de performance<\/h3>\n

        Exceptional Mechanical Reinforcement<\/strong> High tensile strength (typically 150\u2013300 MPa or 80\u2013150 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.<\/p>\n

        Superior Electrical Insulation<\/strong> Outstanding dielectric strength (\u22655\u20138 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.<\/p>\n

        Stabilit\u00e9 thermique et environnementale<\/strong><\/p>\n

          \n
        • Melting point: Approximately 250\u2013255\u00b0C<\/li>\n
        • Continuous operating temperature: Up to 150\u2013180\u00b0C (Class F rating in many grades)<\/li>\n
        • Excellent resistance to moisture absorption (<0.5%), UV radiation, chemicals, solvents, humidity, and thermal aging.<\/li>\n<\/ul>\n

          Flame-retardant grades are available to meet stringent fire safety requirements in specialty cables.<\/p>\n

          Processing Efficiency & Clean Application<\/strong> 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.<\/p>\n

          Rentable et durable<\/strong> Lightweight design reduces overall cable weight compared to thicker alternatives, supporting lower material costs and easier installation while remaining fully recyclable.<\/p>\n

          \"Cable<\/p>\n

          Principales applications dans les syst\u00e8mes de c\u00e2bles<\/h3>\n

          PET Polyester Tape (Mylar Tape) is widely specified for:<\/p>\n

            \n
          • Signal Transmission, Data & Instrumentation Cables<\/strong>: Binding and separation layers to maintain pair geometry and electrical isolation.<\/li>\n
          • Coaxial & RF Cables<\/strong>: Internal wrapping for dielectric support and shielding isolation.<\/li>\n
          • Control & Power Cables<\/strong>: Mechanical reinforcement and additional dielectric strength between conductors and shields.<\/li>\n
          • C\u00e2bles sp\u00e9ciaux<\/strong>: Composite constructions requiring smooth, uniform layers for improved flexibility and long-term reliability in industrial, automotive, aerospace, and renewable energy applications.<\/li>\n<\/ul>\n

            It excels in longitudinal or helical wrapping where a thin, high-strength insulating barrier is needed without adding significant bulk.<\/p>\n

            \"Polyester<\/p>\n

            Key Technical Parameters of Cable-Grade PET Polyester Tape<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
            Param\u00e8tre<\/th>\nTypical Range \/ Value<\/th>\nTest Method \/ Note<\/th>\n<\/tr>\n<\/thead>\n
            Thickness<\/td>\n12 \u2013 100 \u03bcm (most common: 12, 15, 19, 23, 25, 36, 50 \u03bcm)<\/td>\nMicrometer<\/td>\n<\/tr>\n
            Tensile strength (MD)<\/td>\n\u2265 150 MPa<\/td>\nASTM D882 \/ GB\/T 1040<\/td>\n<\/tr>\n
            Elongation at break (MD)<\/td>\n\u2265 50 \u2013 80 %<\/td>\nASTM D882<\/td>\n<\/tr>\n
            Dielectric strength<\/td>\n\u2265 170 \u2013 200 V\/\u03bcm<\/td>\nASTM D149<\/td>\n<\/tr>\n
            Melting point<\/td>\n\u2248 255 \u00b0C<\/td>\nDSC<\/td>\n<\/tr>\n
            Continuous temperature<\/td>\n130 \u00b0C (Class B)<\/td>\nIEC 60085<\/td>\n<\/tr>\n
            Short-term temperature<\/td>\n150 \u00b0C<\/td>\n\u2014<\/td>\n<\/tr>\n
            Moisture absorption<\/td>\n< 0.5 %<\/td>\n24 h immersion<\/td>\n<\/tr>\n
            Density<\/td>\n1.39 \u2013 1.40 g\/cm\u00b3<\/td>\n\u2014<\/td>\n<\/tr>\n
            Heat shrinkage (150 \u00b0C, 30 min)<\/td>\n\u2264 3.5 %<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            <\/h3>\n

            \"auxiliary-components-of-electrical-cables-Doingcable\"<\/h3>\n

            Standards, Compliance and Quality Requirements<\/h3>\n

            Cable-grade PET tape is routinely specified to:<\/p>\n

              \n
            • IEC 60674-3-2 (plastic films for electrical purposes)<\/li>\n
            • UL 510 (where adhesive versions are used)<\/li>\n
            • RoHS \/ REACH<\/li>\n
            • ISO 9001 manufacturing control<\/li>\n<\/ul>\n

              Critical incoming-inspection parameters for cable manufacturers are thickness tolerance (\u00b110 % or tighter), tensile strength, elongation, pin-hole count (especially for Al\/PET), and absence of surface contamination that could affect subsequent extrusion.<\/p>\n

              \"Polyester<\/p>\n

              PET Tape vs Aluminium\/PET (Al-Mylar) Composite \u2013 Functional Comparison<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n
              Propri\u00e9t\u00e9<\/th>\nPure PET Polyester Tape<\/th>\nAluminium\/PET (Al-Mylar) Composite<\/th>\n<\/tr>\n<\/thead>\n
              Primary function<\/td>\nBinder \/ separator \/ dielectric<\/td>\nEMI\/RFI shielding + binder<\/td>\n<\/tr>\n
              Shielding effectiveness<\/td>\nAucun<\/td>\n55 \u2013 80 dB (30 MHz \u2013 1 GHz)<\/td>\n<\/tr>\n
              Tensile contribution<\/td>\nHaut<\/td>\nHigh (PET backbone)<\/td>\n<\/tr>\n
              Temperature range<\/td>\n\u201370 \u00b0C to +130 \u00b0C continuous<\/td>\n\u201340 \u00b0C to +130 \u00b0C<\/td>\n<\/tr>\n
              Typical thickness<\/td>\n12 \u2013 50 \u03bcm<\/td>\nAl 6\u201312 \u03bcm + PET 9\u201323 \u03bcm<\/td>\n<\/tr>\n
              Cost relative<\/td>\nLower<\/td>\nPlus haut<\/td>\n<\/tr>\n
              Preferred applications<\/td>\nPower, control, instrumentation cores<\/td>\nData, coaxial, instrument, 5G, medical cables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Packaging & Storage for Optimal Performance<\/h3>\n

              PET Polyester Tape is available in two convenient formats:<\/p>\n

                \n
              • PAD Type<\/strong>: Inner diameter 53 mm (2″) or 76 mm (3″), max outer diameter 650 mm, width 5\u20131300 mm, paper or plastic core.<\/li>\n
              • Type de bobine<\/strong>: Inner diameter 76 mm (3″), max outer diameter 500 mm, max width 400 mm, paper core.<\/li>\n<\/ul>\n

                Store at room temperature in a dry environment, away from direct sunlight, pollution, and mechanical forces to preserve optimal performance.<\/p>\n

                Key Takeaways for Procurement and Design Engineers<\/h3>\n

                PET polyester (Mylar) tape remains the most cost-effective, mechanically robust and dielectrically reliable binder film for the majority of industrial cable constructions. Correct thickness selection, controlled application tension and verified incoming material properties directly determine long-term cable reliability and diameter consistency.<\/p>\n

                For project-specific technical data sheets, custom widths, colours or laminated constructions (Al\/PET, Cu\/PET), contact our engineering team with core diameter, voltage class and processing-line parameters.<\/p>\n

                Demande d'informations<\/strong><\/p>","protected":false},"excerpt":{"rendered":"

                Ruban en polyester PET haute r\u00e9sistance (ruban Mylar) offre une isolation \u00e9lectrique fiable, une stabilit\u00e9 dimensionnelle et une protection m\u00e9canique pour les c\u00e2bles d'alimentation, les c\u00e2bles de communication, les moteurs et les transformateurs. Disponible en \u00e9paisseurs de 12 \u00e0 100 \u00b5m, de multiples couleurs et de largeurs coup\u00e9es sur mesure. Conforme RoHS\/REACH. Demandez maintenant des \u00e9chantillons et des donn\u00e9es techniques.<\/p>","protected":false},"featured_media":29452,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[21,93,91],"product_tag":[228,226,225,230,203,229],"class_list":{"0":"post-28592","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-product","7":"product_cat-auxiliary-material-for-cable","8":"product_cat-cable-material","9":"product_tag-cable-insulation-tape","10":"product_tag-mylar-tape","11":"product_tag-pet-polyester-tape","12":"product_tag-polyester-film-tape","13":"product_tag-reliable-cable-materials","14":"product_tag-wrapping-tape-for-cables","16":"first","17":"instock","18":"shipping-taxable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/comments?post=28592"}],"version-history":[{"count":6,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28592\/revisions"}],"predecessor-version":[{"id":30932,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product\/28592\/revisions\/30932"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media\/29452"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media?parent=28592"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_brand?post=28592"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_cat?post=28592"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/product_tag?post=28592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}