Copolymer Coated Aluminium Tapes: When Shielding Is Also a Process Decision

Wire Düsseldorf always brings the same question back to the table: which materials will keep pace with higher output targets without compromising quality on the reel. In shielding and barrier applications, Copolymer Coated Aluminium tapes are increasingly selected not only for what they do electrically, but for how they behave on the production line.
Aluminium tape is a familiar choice in cable design. The real differentiator, however, is repeatability how consistently the tape bonds, runs and performs across shifts, lots and line conditions. Copolymer coating supports controlled, predictable bonding to polymer layers and can help maintain stable taping behavior, reducing the variation that typically shows up as stoppages, rework or scrap. In short: the target is not “high adhesion” as a number, but repeatable adhesion as a process outcome.

Format and converting: the hidden variables
Many production issues are caused not by the base material, but by the mismatch between tape format and the customer’s taping setup. That is why Gürfil approaches Copolymer Coated Aluminium with a practical converting mindset: custom slit widths, suitable roll formats and pad/spool winding options aligned to the intended application. This is where cost is win or loss - through fewer interruptions, more stable tension behavior and more predictable output.
A wider Foil–Film–Tape portfolio
Founded in 1981, Gürfil Foil–Film–Tape & Machinery supplies cable manufacturers with a broad portfolio of flexible raw materials. Alongside Copolymer Coated Aluminium, the range includes ALU/PET, ALU/PET/SY, ALU/PVC, CU/PET and CU/PET/SY laminates, Polyester Film, Etp Copper tape, Mica tapes (Phlogopite / Synthetic / Muscovite), Fiberglass tape, Kraft & Crepe paper, PP foam and Identification tapes, plus semi-conductive, swellable/waterblocking and Non-Woven solutions. We also supply Ripcord and waterblocking yarns and selected wire products, supporting customers who prefer compatible sourcing across multiple layers and constructions.

Machinery and commissioning: making the material work on the line
Shielding results depend on the taping process as much as the tape itself - tension settings, braking response, lay angle and tooling condition can turn a good tape into an inconsistent one. Gürfil therefore complements materials supply with Braiding and Taping machinery, supported by commissioning, after-sales technical service, and spare parts. Treating material selection and equipment setup as one combined topic helps customers shorten ramp-up time and stabilize production, especially when line speeds increase or new designs are introduced.
Meet Gürfil in Düsseldorf
If you are reviewing shielding designs, troubleshooting taping stability, or planning 2026 supply, we would be pleased to meet in person and discuss specifications and timelines.

Visit Gürfil at Wire Düsseldorf 2026 @ Hall 9, Stand A74.