Copper Metallized PET Film

Vacuum metallized polyester film

  • Total thickness: (10μm to over 100μm) with a tolerance of ±3μm
  • PET layer thickness: (≥1.6μm) + copper layer (≥0.1μm)
  • Tensile strength: ≥30Mpa
  • Width: 0.5mm to 990mm
  • Elongation rate: ≥30% minimum
  • Packaging: rolls (D30), sheets, 76mm removable rolls, inverted cone packaging

By depositing copper in a vacuum onto the film’s surface, copper metallized PET film features a high dielectric constant, outstanding insulation resistance, thermal insulation, and robust tensile properties.




The main difference between electroplating and vacuum metallizing is cost. Vacuum metallization is usually more expensive and has a higher process complexity than electroplating.

In a vacuum, the coating material is evaporated or sputtered and deposited onto the substrate to form a thin film. Since there are no air molecules to interfere, the coating material can travel in straight lines and form highly uniform layers.

We can process a wide range of materials, including non-metallic materials such as PEN, PET, PPS, PP, PI, PTFE, EPTFE, etc., as well as a variety of metal materials such as aluminum, copper, gold, silver, nickel, tin and indium.

EMI solutions consist of three main routes: EMI shielding, printed circuit board grounding and EMI absorption.

  • Electromagnetic Interference Shielding involves blocking electromagnetic noise and attenuating cable-collected noise. It uses high-reflectance materials (usually low-resistance metals) to encase or seal openings in target devices for EMI and EMS solutions.
  • Printed Circuit Board (PCB) Grounding refers to grounding electronic equipment electrically to prevent electric shock, treating the Earth as a massive conductor at zero electric potential. Two grounding methods are employed: frame grounding and signal grounding on PCBs.
  • Electromagnetic Interference Absorption (EMI Absorption) utilizes magnetic loss, dielectric loss, and conduction loss to convert radio wave energy into thermal energy. EMI absorbers have a wide range of applications.
Shielding Materials

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