Material and Mould
Single Side Aluminum Foil Composite Tape
AL PET Shielding Tape for Communication and Data Cable
View specifications →
Home/Products/Material and Mould/Shielding Foil and Tape/Double-Sided Aluminum Foil Composite Material
Double-Sided Aluminum Foil Composite Material
AL PET AL Three Layer Shield for Cable Production
Product Overview
What This Product Is
This is a three-layer laminate: a PET film sandwiched between two layers of aluminium foil, bonded by adhesive or extrusion lamination. Shielding works from both sides, and the PET core carries tensile load so the tape does not elongate or break during cable twisting and extrusion. It is used as the shield layer in Cat5e to Cat7 LAN cable, coaxial cable, instrumentation and control cable, automotive and EV cable and general communication cable.
Material and MouldShielding Foil and Tape
Key Benefits
What It Gives Your Production Line
Shielding on Both Faces
Aluminium on both sides of the PET core protects against electromagnetic and radio frequency interference regardless of tape orientation.
Holds Dimension Under Process Load
The PET core gives tensile strength and prevents elongation or breakage during cable twisting or extrusion.
Barrier Against Moisture and Corrosion
An effective barrier to water vapour, chemical corrosion and oxidation inside the finished cable.
Survives Extrusion Heat
Thermal stability for the temperatures normally seen during cable production.
Application Scenarios
Where It Is Used
- LAN and Ethernet cable shielding for Cat5e, Cat6 and Cat7
- Coaxial cable for TV, satellite and broadband
- Instrumentation and control cable in industrial environments
- Automotive and EV cable high-frequency shielding
- Communication and signal cables
Who It Is For
Who Buys It
- LAN cable plants building shielded constructions
- Automotive and EV cable manufacturers
- Instrumentation cable makers working to EMC requirements
Problems It Solves
The Reasons Buyers Move To This Product
Tape Snaps During Cabling
Elongation and breakage in the taping stage stop the line. The PET core is there to prevent that.
Orientation Errors on the Shop Floor
With aluminium on both faces, a tape loaded the wrong way round still shields.
Moisture Ingress Degrades Cable
The laminate acts as a vapour and corrosion barrier inside the construction.
Technical Features
Construction And Materials
- Three-layer structure: aluminium foil / PET film / aluminium foil
- Bonded with adhesive or by extrusion lamination
- Dual-layer EMI and RFI shielding
- Dimensional stability from the PET core
- Moisture and corrosion resistance
- Thermal stability at cable production temperatures
- Lightweight and flexible, easy to wrap, slit and apply
Certifications And Compliance
No product certification is claimed for this item beyond the standards named in the specification table. Where a specific certificate is required for your market, ask before ordering and we will confirm what can be provided.
Specifications
Published Figures
| Structure | Aluminium foil / PET film / aluminium foil |
|---|---|
| Bonding Method | Adhesive or extrusion lamination |
| Shielding | Dual-layer EMI and RFI protection |
| Effective Frequency Band | 1 – 100 MHz |
| Shielding Attenuation | Up to 70 dB when used with Mylar foil |
| Barrier Properties | Water vapour, chemical corrosion and oxidation |
| Typical Applications | LAN Cat5e/Cat6/Cat7, coaxial, instrumentation, automotive and EV cable |
Figures are the published specification for this product. Values outside this table are confirmed in writing before order rather than estimated.
Manufacturing And Quality Control
How It Is Produced And Checked
Materials are produced to the stated thickness, width and formulation, then slit, wound and packed to the reel or core size ordered. Dimensional checks are made against the specification before dispatch.
Incoming Material
Foil, film, compound or wire checked for thickness and surface condition before processing.
Processing
Coating, lamination, slitting or drawing to the ordered dimension.
Dimensional Check
Width, thickness and roll or reel diameter verified against the specification.
Performance Reference
Shielding attenuation and conductivity referenced to the published figures for the grade.
Packing
Shaft or reel packing in cartons for safe handling and transport.
Customisation Options
What Can Be Changed
- Slitting width for your taping head
- Foil and PET thickness combination
- Adhesive or extrusion lamination bonding
- Roll core diameter and outer diameter
Use Guide
Working With It On Your Line
- Check laminate adhesion on a peel sample before a long run; delamination shows up as shield gaps later.
- Maintain taping tension within your machine spec so the laminate is not stretched.
- Keep rolls in their original packaging until loading to avoid edge damage.
- Confirm overlap percentage on finished cable samples rather than on the tape itself.
Comparison
How It Compares Within The Range
Double-Sided Aluminum Foil Composite Material sits inside the Material and Mould range. The products below are the closest alternatives or the parts most often ordered alongside it — compare the published specification tables rather than the descriptions when the choice is close.
Read Next
Applications Solutions And Guides
FAQ
Double-Sided Aluminum Foil Composite Material FAQ
What is the layer structure?
Aluminium foil on both faces of a central PET film, bonded with adhesive or by extrusion lamination.
Why choose double-sided over single-sided tape?
Both aluminium surfaces shield, and the PET core keeps dimensional stability during cable twisting and extrusion.
Which cables use this tape?
LAN cable in Cat5e, Cat6 and Cat7, coaxial cable, instrumentation and control cable, automotive and EV cable, and communication and signal cable.
Does it resist moisture?
Yes. It is an effective barrier against water vapour, chemical corrosion and oxidation.
What shielding attenuation is achievable?
Up to 70 dB when used with Mylar foil, primarily in the 1 to 100 MHz range.
Request A Quotation For Double-Sided Aluminum Foil Composite Material
Send the construction, grade and quantity you need. We confirm the specification in writing before quoting.