Material and Mould
PET Polyester Belt Mylar Tape
Biaxially Oriented Polyester Tape for Wrapping and Insulation
View specifications →
Copper Foil Polyester Belt
Copper Plastic Composite Tape With 100 dB Shielding
Product Overview
What This Product Is
Copper polyester tape, also called copper-plastic composite tape, is copper foil bonded to PET film with adhesive. Copper gives higher shielding performance than aluminium — around 100 dB attenuation in the 1 to 100 MHz band — and the polyester layer strengthens the foil so it survives the taping process. It is the shield material for high-performance cable: computer cable, signal cable, communication cable, coaxial cable, FPC and soft circuit boards.
Material and MouldShielding Foil and Tape
Key Benefits
What It Gives Your Production Line
Higher Shielding Than Aluminium Tape
Shielding attenuation of about 100 dB in the 1 to 100 MHz range, where aluminium composites reach up to 70 dB.
PET Backing Carries the Tension
The polyester film strengthens the copper foil's tensile performance through the taping head.
Conductive and Thermally Efficient
Rolled or electrolytic copper foil offers outstanding conductivity and efficient heat dissipation.
Slit Narrow for Fine Cable
Minimum slitting width of 2 mm with 5 mm as the conventional width, on 52 mm or 76 mm cores.
Application Scenarios
Where It Is Used
- Shielded cables with high performance requirements
- Computer cable
- Signal cable
- Communication cable
- Coaxial cable
- FPC and soft circuit board shielding
Who It Is For
Who Buys It
- Manufacturers of premium shielded data cable
- FPC and flexible circuit producers
- Cable plants meeting strict EMC targets
Problems It Solves
The Reasons Buyers Move To This Product
Aluminium Shielding Is Not Enough
Where the EMC target is demanding, copper's higher attenuation closes the gap without adding a braid.
Foil Tears on Narrow Slits
Copper slit to 2 mm needs the PET backing to hold together during application.
Oxidised Foil Bonds Badly
Low surface oxygen levels give the tape excellent adhesion to metals and insulating materials.
Technical Features
Construction And Materials
- Double layer tape: copper foil bonded to polyester film
- Low surface oxygen levels for excellent adhesion to metals and insulating materials
- Rolled or electrolytic copper foil with high tensile strength
- Excellent flexibility and ductility
- Outstanding conductivity and efficient heat dissipation
- Smooth, glossy surface
- Polyester film strengthens the tensile strength of the copper foil
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
| Copper Foil Thickness | 12, 15, 18 and 20 µm |
|---|---|
| Polyester Film Thickness | 12, 15, 19 and 23 µm |
| Colour | Copper |
| Minimum Slitting Width | 2 mm |
| Conventional Slitting Width | 5 mm |
| Bore Size | 52 mm or 76 mm |
| Maximum Winding Outer Diameter | 800 mm |
| Packaging | Shaft packing form, carton packaging |
| Effective Frequency Band | 1 – 100 MHz |
| Shielding Attenuation | 100 dB |
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
- Copper foil thickness 12 to 20 µm
- Polyester film thickness 12 to 23 µm
- Slitting width from 2 mm
- Bore size 52 mm or 76 mm
- Roll outer diameter up to 800 mm
Use Guide
Working With It On Your Line
- Handle rolls by the core — fingerprints on copper foil oxidise and show as adhesion defects.
- Match slit width to your cable diameter and overlap requirement before ordering.
- Keep the tape sealed until use; exposed copper dulls in humid air.
- Check the copper-to-drain-wire contact on a finished sample when shielding continuity is specified.
Comparison
How It Compares Within The Range
Copper Foil Polyester Belt 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
Copper Foil Polyester Belt FAQ
What shielding attenuation does copper tape achieve?
Approximately 100 dB, primarily in the 1 to 100 MHz range used for anti-electromagnetic interference.
Which thicknesses are available?
Copper foil in 12, 15, 18 and 20 µm, with polyester film in 12, 15, 19 and 23 µm.
How narrow can the tape be slit?
Minimum slitting width is 2 mm, with 5 mm as the conventional width.
What bore and roll sizes are supplied?
Bore size 52 mm or 76 mm, with a maximum winding outer diameter of 800 mm, in shaft packing form and carton packaging.
Why is the polyester layer there?
The polyester film strengthens the tensile strength of the copper foil so it survives slitting and taping.
Request A Quotation For Copper Foil Polyester Belt
Send the construction, grade and quantity you need. We confirm the specification in writing before quoting.