FEP silver plated film | Aerospace grade thermal control and high-frequency electromagnetic shielding solution

Product Overview

FEP (F46) is a copolymer of tetrafluoroethylene and hexafluoropropylene, which retains the excellent chemical inertness and wide temperature stability of PTFE while possessing thermoplastic processing capability. The silver plating layer endows the film with high conductivity and high infrared reflectivity.
Advanced Institute (Shenzhen) Technology Co., Ltd. has adopted a self-developed roll to roll magnetron sputtering process to achieve stable mass production of ultra-thin (≤ 10 μ m) FEP silver plated films, promoting the independent controllability of high-end composite films.

Product specification customization scope

Core advantages

Advantages compared to other silver plated films

Main application areas

• Space EngineeringOuter layer film (secondary surface mirror) of thermal control multi-layer components for satellites and deep space probes; Reflective heat dissipation layer on the surface of spacecraft.
• 5G high-frequency communicationHigh frequency copper-clad laminate (FCCL) insulation layer, with a transmission rate of about 20Gbps; Millimeter wave antenna reflector layer; Flexible circuit board substrate, high-frequency electromagnetic shielding film.
• Chemical anti-corrosionReactor, pipeline, valve lining; Protective layer for strong acid and alkali resistant storage tanks.
• Semiconductor ManufacturingWet cleaning tank lining for processes below 14nm; High purity chemical pipeline lining.
• Military supporting facilitiesShielding/protective materials that comply with GJB 773A standards.
• Solar Energy and Optical DevicesSolar collector reflective coating, photovoltaic backsheet reflective layer.

Product feature comparison (FEP silver plating vs PI silver plating vs PET silver plating)

FEP silver plated film comprehensively balances processing convenience, temperature resistance, chemical resistance, and high-frequency electrical performance, and has unique competitiveness in high-end fields such as aerospace and 5G communication.

Space Lifespan Measurement Data (LDEF Test)

The test data of the long-term exposure facility in the United States exposed to 550km low Earth orbit for several years shows that the annual mass loss of F46 silver plated film is about 2.54 μ m, and the thickness of 0.254mm can ensure reliable service in orbit for more than 30 years.

Procurement suggestionFor long-life missions in low Earth orbit (≥ 10 years), it is recommended to use FEP silver plated film with a thickness of ≥ 0.254mm; If simultaneous atomic oxygen protection is required, an additional SiO ₂ protective layer coating can be added.

Major space missions have been applied

• Chang'e-6 (2024)Static and conductive through-hole FEP silver plated film, used for temperature control guarantee of monthly back sampling return.
• Tianwen-2The same material is used for thermal control systems and deep space exploration.
• Beidou navigation satelliteApplied in orbit for over 10 years.
• Mozi quantum satellite/Wukong dark matter detection satelliteWide width conductive FEP silver plated film operates stably.

Company Qualification

• National high-tech enterprise
• ISO9001 Quality Management System Certification
• GJB 773A Military Standard Product Compliance
• Independently developed roll to roll magnetron sputtering process, stable mass production of ultra-thin (≤ 10 μ m) FEP silver plated film