Metalized Polyester Film & Foil Laminates | Custom Aluminum/Copper Foil + PET Flexible Composites for EMI Shielding & Insulation

Our Custom Metallized Polyester Film & Metal Foil Laminates represent an advanced engineering matrix designed for highly sensitive electromagnetic interference (EMI/RFI) shielding, thermal barrier management, and technical electrical insulation. Unlike basic vacuum vapor-deposited films that offer only microscopic metal layer thickness, we utilize a robust, high-bond structural lamination process to integrate genuine solid Aluminum Foil or Copper Foil with a durable Polyester (PET) Film backing.

By utilizing proprietary cross-linked industrial adhesives, our custom composites offer exceptional peel strength, immense tear resistance, and steady dielectric parameters. The material is chemically stable and optimized to withstand intense tension, automated bending, and continuous temperature fluctuations without delamination.

Custom Lamination Configurations

We offer complete structural flexibility to build a laminate that meets your precise technical blueprints:

• Custom Metal Foil Thickness: Select high-purity Aluminum Foil (regular options: 6μm to 50μm+) or premium Copper Foil (regular options: 9μm to 70μm / 0.25oz to 2oz) depending on your target conductivity, frequency attenuation, and weight constraints.

• Flexible PET Film Substrates: Tailor the PET film core thickness (12μm to 250μm+) to satisfy distinct electrical breakdown voltage limits and mechanical tensile stiffness.

• Versatile Layer Architectures: Available in Single-sided (Foil + PET), Double-sided Duplex (PET + Foil + PET or Foil + PET + Foil), and complex multi-layer custom shielding grids.

• Tailored Film Variants: Choose from clear PET, opaque black PET, matte textured PET, or specialized Flame-Retardant (UL94 V-0) grades.

• Precision Converting & Slitting: Supplied in master logs, precise slit-to-width strip tapes (widths from 5mm to 1300mm with zero edge burrs), or custom die-cut sheets.

Key Advantages & Performance

• Superior Shielding Efficiency: Thick copper or aluminum foil layers provide unmatched attenuation rates across high-frequency bands, blocking severe EMI/RFI noise far better than thin PVD metalized films.

• Tough Mechanical Reinforcement: Brittle metallic foils are protected by the tough elastomeric properties of the PET backing, allowing the composite to be tension-wrapped or folded without fracturing or tearing.

• Excellent Electrical Barrier: The core polyester layer provides a high dielectric breakdown threshold, making it a reliable combination barrier for components where space is tight but insulation is critical.

• Outstanding Environmental Tightness: Acts as a complete moisture, oxygen, and vapor seal while doubling as a continuous radiant heat reflector.

Typical Applications

• Wire & Cable Manufacturing: High-speed communication cables, coaxial cables, automotive signal wires, and flexible flat cables (FFC) wrapping tapes.

• Electronics & PCB Hardware: Flexible printed circuit (FPC) grounding tabs, transformer core shielding wraps, and anti-static ESD moisture-barrier pouches.

• Thermal Insulation Engineering: Cryogenic piping jackets, radiant barrier blankets, and specialized HVAC ventilation insulation facings.

Flexible Technical Parameter Guide