Metallfolienstreifen

Metallfolienstreifen, also known as metallic foil strips, are thin layers of metal that are applied to a substrate to provide electrical, thermal, or protective functions. They are typically manufactured by vacuum deposition, roll-to-roll sputtering, or electroplating onto flexible polymer films, such as polyester, polyethylene terephthalate or polyimide. The resulting foil is often 10–50 µm thick and can be cut or patterned by laser, inkjet printing or photolithography to form conductive traces, shielding layers or decorative elements.

In electronic assemblies, metallfolienstreifen are widely used for printed circuit board (PCB) interconnects, flexible printed circuits, and as copper taping for grounding and EMI shielding. In cable technology they serve as foil tape insulators that reduce corona discharge and improve dielectric strength. The automotive and aerospace industries employ metallic foils for cable pressurization and for reinforcement of composite laminates. Additionally, metallic foil tapes are used as protective barriers in chemical packaging, where the foil resists oxygen and moisture ingress while keeping light out.

Because of their high reflectivity and low emissivity, metallfolienstreifen find application in thermal management, such as radiator skins or heat exchanger surfaces, where they help reduce radiative heat loss. In the decorative sector, metallic foils are used in packaging, signage, and art for a glossy or silver finish.

The global market for metallic foil materials has grown steadily, driven by demands for lightweight, high‑performance electronics and advanced packaging. Key suppliers are concentrated in Asia, Europe, and North America, and advances in roll‑to‑roll production processes continue to lower costs while improving adhesion and durability.