Copolymer Coated Aluminium Tape | EAA Coated Aluminum Shielding & Waterproofing Material

Copolymer Coated Aluminum Tape (also known as Copolymer Aluminium Tape or EAA Coated Aluminum Tape) is a high-performance shielding and waterproofing material manufactured for use in communication cables, shielding cables, and waterproof cables. It consists of a high-quality aluminum tape coated on one or both sides with an adherent ethylene copolymer (EAA) layer in clear or blue color, providing excellent electrical shielding, moisture barrier properties, and long-term cable protection.

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Category: Auxiliary Material for Cable Tags: cable shielding tape, communication cable shield, copolymer coated aluminum tape, dammam cable materials, eaa coated aluminum tape, ls zh cable material, waterproof aluminum tape

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Description

Copolymer Coated Aluminum Tape (also known as Copolymer Aluminium Tape or EAA Coated Aluminum Tape) is a high-performance shielding and waterproofing material manufactured by RLB for use in communication cables, shielding cables, and waterproof cables. It consists of a high-quality aluminum tape coated on one or both sides with an adherent ethylene copolymer (EAA) layer in clear or blue color, providing excellent electrical shielding, moisture barrier properties, and long-term cable protection.

Best Tape for Faced Insulation Seams

Main Applications

Copolymer coated aluminum tape is widely used as:

Shielding layer in communication cables, coaxial cables, and data cables to prevent electromagnetic interference (EMI).
Waterproof layer in underground, aerial, and submarine cables for superior moisture resistance.
Composite shielding in power cables, optical fiber cables, and specialty cables requiring both electrical and environmental protection.

Its dual functionality makes it an essential component in modern cable manufacturing for high-reliability telecommunication and power transmission networks.

Composition and Structure

The product features a base aluminum tape (thickness 0.08–0.50 mm) uniformly coated with an ethylene acrylic acid (EAA) copolymer layer (0.03–0.10 mm) on one or both sides. The copolymer provides strong adhesion to the aluminum substrate and excellent compatibility with cable sheath materials, ensuring reliable bonding during extrusion and long-term performance.

Key Advantages

Superior Shielding Performance: High conductivity and low dielectric constant deliver excellent EMI/RFI shielding.
Outstanding Waterproofing: The EAA copolymer layer creates a robust moisture barrier with proven water and filler/flood resistance.
High Mechanical Strength: Tensile strength ≥65 MPa and elongation ≥15% ensure durability during cable processing and installation.
Excellent Adhesion & Sealability: Peel strength ≥6.13 N/cm and heat seal strength ≥17.5 N/cm guarantee strong bonding and leak-proof performance.
Corrosion & Environmental Resistance: Grade 7 corrosion resistance and no delamination after 168 hours at 68°C in filler/flood or water tests.
Dielectric Integrity: No breakdown under DC 1 kV testing on two-side coated versions.

Technical Specifications

Parameter	Typical Value	Test Condition / Standard
Aluminum Thickness	0.08–0.50 mm	Base tape
EAA Coating Thickness	0.03–0.10 mm	One or both sides
Tensile Strength	≥65 MPa	ISO 527
Elongation at Break	≥15%	ISO 527
Peel Strength	≥6.13 N/cm	Internal test
Heat Seal Strength	≥17.5 N/cm	Internal test
Corrosion Resistance	Grade 7	168 hours at 68°C in filler/flood
Dielectric Strength	No breakdown at DC 1 kV	Two-side coated version

(Custom widths, thicknesses, and coating colors available to match exact cable designs.)

Manufacturing Standard

The product complies with the Chinese national standard YD/T 723-2007 for copolymer coated aluminum tape used in communication cables.

Packaging

Copolymer coated aluminum tape is supplied in rolls with inner diameters of 76 mm, 102 mm, 150 mm, 205 mm, or 406 mm. Width ranges from 12 mm to 1070 mm, and outer diameter can reach up to 1200 mm. Rolls are packed into sturdy wooden cases for safe transportation and storage.

Copolymer Coated Aluminum Tape from RLB is the preferred choice for cable manufacturers seeking reliable shielding, waterproofing, and long-term performance in communication and power cables.

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Shipping & Delivery

International Sea Freight Services

We provide professional and reliable international sea freight logistics services covering major ports worldwide. Whether your cargo is small or large, near or far, we can flexibly arrange the most suitable transportation solution according to your actual needs. Customers are free to choose FOB or CIF (or other Incoterms) to ensure the entire shipping process is transparent, efficient, and cost-effective.

Flexible Trade Terms

FOB (Free On Board): Ideal for customers who prefer to handle insurance and onward transportation themselves. We are responsible for delivering the goods safely to the designated loading port and completing the loading onto the vessel.
CIF (Cost, Insurance and Freight): Perfect for customers who want a one-stop service. We cover the full ocean freight and marine insurance from the port of loading to the port of destination, reducing your operational risks.
Other common terms such as FCA, CFR, etc. can also be customized according to your requirements.

We maintain extensive sea freight routes and long-term partnerships with major shipping lines (including Maersk, CMA CGM, COSCO, and more). This ensures stable space availability, transparent pricing, and reliable transit times. Whether you are shipping small sample orders or full container loads (FCL/LCL), you will receive professional one-stop sea freight solutions.