{"id":28604,"date":"2026-04-26T07:14:51","date_gmt":"2026-04-26T07:14:51","guid":{"rendered":"https:\/\/doingcable.com\/?post_type=product&p=28604"},"modified":"2026-08-03T12:22:54","modified_gmt":"2026-08-03T12:22:54","slug":"\u0634\u0631\u064a\u0637-\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645-\u0645\u0637\u0644\u064a-\u0628\u0648\u0644\u064a\u0645\u0631-\u0645\u0634\u062a\u0631\u0643","status":"publish","type":"product","link":"https:\/\/doingcable.com\/ar\/product\/\u0634\u0631\u064a\u0637-\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645-\u0645\u0637\u0644\u064a-\u0628\u0648\u0644\u064a\u0645\u0631-\u0645\u0634\u062a\u0631\u0643\/","title":{"rendered":"\u0634\u0631\u064a\u0637 \u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645 \u0645\u0637\u0644\u064a \u0628\u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631 \u0627\u0644\u0645\u0634\u062a\u0631\u0643"},"content":{"rendered":"

Copolymer coated aluminium tape (also known as EAA-coated aluminium tape or Alu\/Copoly tape) is a composite metallic barrier consisting of high-purity soft aluminium foil laminated or coated on one or both sides with an adherent ethylene acrylic acid (EAA) copolymer film. It simultaneously provides electromagnetic shielding, longitudinal and radial moisture blocking, and chemical resistance while forming a permanent heat-seal bond to polyethylene (PE), LLDPE, MDPE and HDPE jackets during cable extrusion.<\/p>\n

\"Best<\/p>\n

High-quality copolymer coated aluminium tape rolls<\/strong> ready for cable manufacturing \u2014 available in various widths and core diameters.<\/p>\n

What is Copolymer Coated Aluminium Tape and Why is it Preferred Over Bare Aluminium Tape?<\/h2>\n

Copolymer coated aluminium tape is a dual-function barrier material in which soft-temper aluminium foil (typically 0.08\u20130.50 mm thick, alloys 1050, 1145, 1200 or 8011) is coated with 0.03\u20130.10 mm of EAA copolymer on one or both faces. The aluminium layer delivers high electrical conductivity for EMI\/RFI shielding and acts as a continuous metallic moisture barrier. The EAA layer supplies peel strength \u2265 6.13 N\/cm and heat-seal strength \u2265 17.5 N\/cm, enabling a bonded \u201claminate sheath\u201d that prevents water ingress and delamination under long-term exposure to filling compounds or ground water. Bare aluminium tape lacks this adhesion and is prone to edge corrosion and jacket separation; the copolymer coating eliminates those failure modes while remaining compatible with standard PE extrusion processes.<\/p>\n

\"Copolymer<\/p>\n

How Does the EAA Copolymer Layer Create a Reliable Moisture Barrier and Bonded Jacket?<\/h3>\n

The ethylene acrylic acid copolymer melts in the temperature window of PE jacket extrusion (approximately 160\u2013220 \u00b0C) and forms covalent and hydrogen bonds with both the aluminium surface and the polar groups of the PE sheath. Once cooled, the interface develops peel strength that remains \u2265 6.13 N\/cm even after 168 h immersion in water or commercial cable filling compounds at 68 \u00b1 1 \u00b0C (tested to YD\/T 723-2007 \/ ASTM B736). This creates a continuous, non-delaminating radial and longitudinal water barrier. Double-sided coating further seals the overlapping edges of the tape, reducing the risk of water tracking along the aluminium surface. Corrosion resistance reaches grade 7 after 480 h exposure to 0.1 mol\/L HCl or NaOH, confirming long-term integrity in buried or submarine environments.<\/p>\n

\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a<\/h2>\n

Copolymer coated aluminum tape is widely used across multiple cable types:<\/p>\n

    \n
  • \u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0648\u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/strong> \u2014 Provides effective EMI shielding and moisture protection in copper pair, coaxial, and data transmission cables.<\/li>\n
  • Fiber Optic Cables<\/strong> \u2014 Serves as a metallic moisture barrier and shielding layer in underground, aerial, and submarine optical cables.<\/li>\n
  • Power Cables<\/strong> \u2014 Used as composite shielding and waterproofing in medium- and high-voltage power cables, especially in harsh or buried environments.<\/li>\n
  • \u0643\u0627\u0628\u0644\u0627\u062a \u0645\u062a\u062e\u0635\u0635\u0629<\/strong> \u2014 Applied in cables requiring combined electrical shielding and environmental protection, such as those used in renewable energy, industrial, and infrastructure projects.<\/li>\n<\/ul>\n

    Its ability to bond reliably with common cable sheath materials (LLDPE, MDPE, HDPE) makes it particularly valuable for high-performance, long-life cable constructions.<\/p>\n

    \u0627\u0644\u0645\u0632\u0627\u064a\u0627 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h3>\n
      \n
    • Excellent EMI\/RFI Shielding<\/strong> \u2014 High-conductivity aluminum layer provides effective electromagnetic interference protection.<\/li>\n
    • Superior Moisture Barrier<\/strong> \u2014 EAA copolymer creates a strong, sealed barrier against water, flooding compounds, and humidity, significantly reducing corrosion and signal degradation risks.<\/li>\n
    • Strong Adhesion & Sealability<\/strong> \u2014 High peel strength (\u22656.13 N\/cm) and heat-seal performance (\u226517.5 N\/cm) ensure reliable bonding during extrusion and prevent delamination throughout the cable\u2019s service life.<\/li>\n
    • Good Mechanical Properties<\/strong> \u2014 Tensile strength \u226565 MPa and elongation \u226515% provide durability during high-speed processing, handling, and installation.<\/li>\n
    • Corrosion & Environmental Resistance<\/strong> \u2014 Grade 7 corrosion resistance, proven performance after prolonged exposure to water and filling compounds.<\/li>\n
    • Flexible Processing<\/strong> \u2014 Wide range of widths (typically 12\u20131070 mm) and core diameters; available in single-sided or double-sided configurations and clear or blue coating colors.<\/li>\n<\/ul>\n

      \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u0627\u0644\u0645\u0639\u0644\u0645\u0629<\/th>\n\u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629<\/th>\nTest Method \/ Standard<\/th>\n<\/tr>\n<\/thead>\n
      Aluminium thickness<\/td>\n0.08\u20130.50 mm<\/td>\nMicrometer<\/td>\n<\/tr>\n
      EAA coating thickness (per side)<\/td>\n0.03\u20130.10 mm<\/td>\nMicrometer<\/td>\n<\/tr>\n
      Tensile strength<\/td>\n\u2265 65\u201375 MPa<\/td>\nASTM E8 \/ YD\/T 723-2007<\/td>\n<\/tr>\n
      Elongation at break<\/td>\n\u2265 15\u201325 %<\/td>\nASTM E8 \/ YD\/T 723-2007<\/td>\n<\/tr>\n
      Peel strength (coating to Al)<\/td>\n\u2265 6.13 N\/cm<\/td>\nASTM B736<\/td>\n<\/tr>\n
      Heat-seal strength<\/td>\n\u2265 17.5 N\/cm<\/td>\nASTM B736<\/td>\n<\/tr>\n
      Water \/ filler resistance (68 \u00b0C, 168 h)<\/td>\nNo delamination, peel \u2265 6.13 N\/cm<\/td>\nREA PE-39 \/ PE-89 \/ ASTM B736<\/td>\n<\/tr>\n
      Dielectric strength (double-sided)<\/td>\nNo breakdown at DC 2 kV \/ 1 min<\/td>\nGB\/T 1408<\/td>\n<\/tr>\n
      Corrosion resistance<\/td>\nGrade \u2265 7<\/td>\n0.1 mol\/L acid\/alkali, 480 h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      These values are routinely achieved with aluminium alloys in the soft (O) temper to ensure formability during longitudinal or helical application on cable lines.<\/p>\n

      Single-Sided vs Double-Sided Copolymer Coated Aluminium Tape \u2013 Selection Logic<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u0645\u064a\u0632\u0629<\/th>\nSingle-Sided<\/th>\nDouble-Sided<\/th>\n<\/tr>\n<\/thead>\n
      Structure<\/td>\nEAA \/ Al or Al \/ EAA<\/td>\nEAA \/ Al \/ EAA<\/td>\n<\/tr>\n
      Primary use<\/td>\nCost-sensitive telecom & low-voltage power<\/td>\nFibre-optic, medium\/high-voltage, submarine<\/td>\n<\/tr>\n
      Edge sealing<\/td>\nRequires additional overlap adhesive or filler<\/td>\nSelf-sealing overlap<\/td>\n<\/tr>\n
      Moisture barrier effectiveness<\/td>\n\u0639\u0627\u0644\u064a<\/td>\nHighest<\/td>\n<\/tr>\n
      Heat-seal to PE jacket<\/td>\nOne face only<\/td>\nBoth faces<\/td>\n<\/tr>\n
      Typical aluminium gauges<\/td>\n0.10\u20130.30 mm<\/td>\n0.15\u20130.25 mm<\/td>\n<\/tr>\n
      Dielectric strength<\/td>\nDC 1 kV<\/td>\nDC 2 kV<\/td>\n<\/tr>\n
      Relative cost<\/td>\n\u0623\u062f\u0646\u0649<\/td>\n\u0623\u0639\u0644\u0649<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Double-sided tape is specified when the cable design demands a fully bonded sheath and maximum resistance to longitudinal water migration. Single-sided tape is selected when only one face needs to bond to the outer PE jacket and cost optimisation is required.<\/p>\n

      \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a<\/h3>\n

      Copolymer Coated Aluminium Tape is widely used across high-reliability cable types:<\/p>\n

        \n
      • \u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0648\u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/strong> \u2014 Effective EMI shielding and moisture protection in copper pair, coaxial, and data transmission cables.<\/li>\n
      • Fiber Optic Cables<\/strong> \u2014 Metallic moisture barrier and shielding layer for underground, aerial, and submarine optical cables.<\/li>\n
      • Power Cables<\/strong> \u2014 Composite shielding and waterproofing in medium- and high-voltage power cables, especially in harsh or buried environments.<\/li>\n
      • \u0643\u0627\u0628\u0644\u0627\u062a \u0645\u062a\u062e\u0635\u0635\u0629<\/strong> \u2014 Renewable energy, industrial, and infrastructure projects requiring combined electrical shielding and environmental protection.<\/li>\n<\/ul>\n

        Its reliable bonding with common sheath materials makes it particularly valuable for long-life, high-performance cable constructions.<\/p>\n

        Manufacturing Standards & Quality<\/h3>\n

        RLB Copolymer Coated Aluminium Tape<\/strong> is manufactured under strict quality control to ensure consistent coating thickness, adhesion performance, and cleanliness \u2014 critical for high-speed cable production lines.<\/p>\n

        \u064a\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0645\u0646\u062a\u062c \u0645\u0639 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0648\u0637\u0646\u064a\u0629 \u0627\u0644\u0635\u064a\u0646\u064a\u0629 YD\/T 723-2007<\/strong> for copolymer coated aluminum tape used in communication cables and is suitable for cables produced under major international standards.<\/p>\n

        Manufacturing Process Highlights<\/strong>:<\/h3>\n
          \n
        • EAA copolymer film is produced via mono-extrusion.<\/li>\n
        • Film is heat-laminated onto high-purity aluminum foil in a controlled tunnel oven for strong, uniform bonding.<\/li>\n
        • Final slitting and packaging according to customer specifications.<\/li>\n<\/ul>\n

          Packaging & Supply<\/h4>\n

          Supplied in rolls with inner core diameters of 76 mm, 102 mm, 150 mm, 205 mm, or 406 mm (steel, aluminum, or plastic cores). Maximum outer diameter up to 1200 mm. Rolls are securely packed in sturdy wooden cases for safe international transportation and storage.<\/p>\n

          Why Cable Manufacturers Choose RLB Copolymer Coated Aluminium Tape<\/h4>\n

          When integrated with RLB\u2019s complete cable manufacturing solutions \u2014 including high-speed stranding equipment, extrusion lines, and complementary shielding materials \u2014 this tape delivers a reliable, cost-effective component that enhances both electrical performance and environmental durability of finished cables.<\/p>\n

          Its combination of shielding effectiveness, strong adhesion, and proven moisture resistance makes it the preferred choice for manufacturers producing high-reliability communication, fiber optic, and power cables for demanding global markets.<\/p>\n

          Key Technical Takeaways<\/h3>\n

          Copolymer coated aluminium tape remains the most cost-effective solution that simultaneously delivers metallic shielding, absolute moisture barrier performance and a permanent bond to PE jackets. Correct selection of aluminium gauge, single- versus double-sided coating, and verification of peel\/heat-seal strength after accelerated ageing are the decisive factors for cable longevity. When specified and applied according to YD\/T 723-2007 and ASTM B736 criteria, the material provides decades of reliable service in the most demanding buried and submarine environments.<\/p>\n

          For project-specific thickness combinations, alloy selection, width and packaging requirements, or to request test certificates and samples,<\/p>\n

          \u0627\u0633\u062a\u0641\u0633\u0631 \u0627\u0644\u0622\u0646<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"

          \u0634\u0631\u064a\u0637 \u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645 \u0645\u0637\u0644\u064a \u0628\u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 (\u0634\u0631\u064a\u0637 \u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645 \u0645\u0637\u0644\u064a \u0628\u0627\u0644\u0625\u064a\u062b\u064a\u0644\u064a\u0646 \u0623\u0633\u064a\u062a\u0627\u062a \u0627\u0644\u0625\u064a\u062b\u064a\u0644) - \u0645\u0627\u062f\u0629 \u062a\u062f\u0631\u064a\u0639 \u0648\u0639\u0632\u0644 \u0645\u0627\u0626\u064a \u0645\u0645\u062a\u0627\u0632\u0629 \u0644\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a\u060c \u0648\u0627\u0644\u0623\u0644\u064a\u0627\u0641 \u0627\u0644\u0636\u0648\u0626\u064a\u0629\u060c \u0648\u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0645\u062d\u0648\u0631\u064a\u0629\u060c \u0648\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629. \u0637\u0644\u0627\u0621 EAA \u0623\u062d\u0627\u062f\u064a \u0623\u0648 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u062c\u0627\u0646\u0628\u060c \u0642\u0648\u0629 \u062a\u0642\u0634\u064a\u0631 \u0639\u0627\u0644\u064a\u0629\u060c \u062d\u0627\u062c\u0632 \u0631\u0637\u0648\u0628\u0629 \u0645\u0645\u062a\u0627\u0632. \u0639\u0631\u0648\u0636 \u0623\u0633\u0639\u0627\u0631 \u0645\u062a\u0648\u0641\u0631\u0629. \u0627\u0633\u062a\u0641\u0633\u0631 \u0627\u0644\u0622\u0646 \u0639\u0646 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a.<\/p>","protected":false},"featured_media":29432,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[21,93,91],"product_tag":[1116,192,1118,1115,191,1117],"class_list":{"0":"post-28604","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-aluminum-copolymer-tape","10":"product_tag-cable-shielding-tape","11":"product_tag-communication-cable-materials","12":"product_tag-copolymer-coated-aluminium-tape","13":"product_tag-eaa-coated-aluminum-tape","14":"product_tag-moisture-barrier-tape","16":"first","17":"instock","18":"shipping-taxable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/comments?post=28604"}],"version-history":[{"count":8,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28604\/revisions"}],"predecessor-version":[{"id":30978,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28604\/revisions\/30978"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/media\/29432"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/media?parent=28604"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_brand?post=28604"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_cat?post=28604"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_tag?post=28604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}