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PEEK Film

CloudFilm PEEK film (polyether ether ketone film) is a high-performance engineering film designed for demanding electrical, electronic and mechanical applications. It combines outstanding high temperature resistance, dimensional stability and chemical durability, making it an ideal choice for aerospace, automotive, electronics and medical device manufacturers.

High Temperature Resistance: PEEK film can withstand high temperatures up to 260°C and maintain high strength even at -198°C.
Chemical Resistance: PEEK film is highly resistant to most chemicals, with the exception of concentrated sulfuric acid.
High Mechanical Strength: PEEK film exhibits excellent mechanical strength and toughness, with high tensile strength and elongation at break.
Superior Electrical Performance: PEEK film maintains excellent insulation and stability even under high temperatures, pressures, frequencies, speeds, and humidity.

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PEEK Film Description

Our PEEK film, offered by CloudFilm, is a premium type of Polyether Ether Ketone Film renowned for its outstanding performance in high-temperature environments, chemical resistance, mechanical strength, and electrical insulation.

As a leading thermoplastic film, it operates continuously at temperatures up to 260°C while maintaining excellent strength and toughness, making it an ideal solution for demanding applications in industries such as aerospace, automotive, electronics, and medical.

CloudFilm’s PEEK film is widely utilized across various industries. In aerospace, it serves as high-performance insulation film and thermoformed components. In the automotive sector, it is applied in fuel system parts and electronic/electrical components.

Within electronics, it functions as a reliable circuit board substrate and insulating material. In the medical field, it is used in precision surgical instruments and implantable devices. This advanced Polyether Ether Ketone Film effectively overcomes the limitations of traditional film materials in extreme conditions, offering users a more durable and dependable solution.

CloudFilm provides PEEK film in a variety of thicknesses and widths, with surface options including polished/polished, polished/mat, and matte/mat finishes. We also offer customization services to meet your specific application needs.

Our mission is to be your trusted manufacturer and supplier of high-performance thermoplastic film, delivering superior quality and exceptional service.

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To receive a tailored quotation for PEEK film, please share a few basic details with CloudFilm:

Target application (e.g. flexible PCB, 5G antenna, cable and wire insulation, gasket, pressure sensor diaphragm, medical device component).
Required thickness range, width and whether you need rolls or sheets.
Estimated annual and first-order quantity, as well as any special tolerances or dielectric requirements.
Required processing, such as slitting, punching, thermoforming or adhesive/laminate structures.

Once we receive your message, our engineering and sales team will review your requirements, recommend the most suitable PEEK film grade and send you a detailed quotation.

For new projects or lab validation, CloudFilm can also provide small trial rolls and supporting technical documentation.

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PEEK Film Applications

Aerospace & Aviation – Used as high-temperature insulation film, slot liners, coil wraps and sensor diaphragms in aircraft electrical systems, actuators and control units.
Electronics, 5G & Communications – Acts as a stable dielectric substrate for flexible printed circuits, antennas, RF modules, filter components and membrane switches, where low dielectric loss and dimensional stability are critical.
Automotive & E-Mobility – Applied in fuel system components, electric motor insulation, battery insulation layers and under-hood electronics that must withstand heat, vibration and chemical exposure.
Medical & Life Sciences – Suitable for sterilizable components such as surgical instrument handles, diagnostic sensors and micro-fluidic channels thanks to its chemical resistance and biocompatibility.
Industrial Sealing & Acoustics – Used for precision gaskets, pressure sensor membranes, speaker cones and other demanding parts requiring a combination of rigidity, fatigue resistance and durability.

For ultra-high-frequency RF and antenna designs that demand even lower dielectric loss, CloudFilm can also provide LCP film as a complementary solution。

PEEK Film Detail Disply

PEEK Film Sheet

PEEK Film for Gasket Sealing

PEEK Film for Speaker Cone

PEEK Film for Pressure Sensor Applications

PEEK film for Membrane Switches

PEEK Film for Cable and Wire Insulation

Why Choose CloudFilm PEEK Film

Proven Reliability in Extreme Conditions

CloudFilm PEEK film is designed for systems that simply cannot fail. In applications exposed to continuous 260°C heat, thermal cycling, vibration and aggressive media, the film maintains its mechanical and electrical properties over the long term. This helps engineers reduce unplanned downtime, extend maintenance intervals and increase overall system reliability.

Engineered for High-Frequency Electronics

For high-speed data, 5G and RF designs, signal integrity is everything. CloudFilm PEEK film offers stable dielectric characteristics across a wide frequency range and excellent dimensional stability, which supports precise line widths and tight impedance control in flexible circuits and antenna structures.

Backed by CloudFilm Expertise & Supply Capability

Since 2002, CloudFilm has focused on high-performance films for demanding industries worldwide. Our PEEK film is produced under strict quality systems, with full traceability from resin to finished rolls. Customers benefit from fast technical support, flexible order quantities and reliable international logistics to keep projects running on schedule.

What is PEEK film?

PEEK film is a high-performance engineering film made from polyether ether ketone resin. It offers a rare combination of high temperature resistance, mechanical strength, chemical stability and excellent electrical insulation for demanding applications.

How does PEEK film compare with PET or polyimide film?

Compared with PET film, PEEK film withstands much higher continuous temperatures and more aggressive chemicals, with better fatigue resistance. Versus polyimide, PEEK provides very good dielectric properties and chemical resistance while often offering easier processing and more balanced mechanical performance in some designs.

What formats and sizes of PEEK film can CloudFilm supply?

CloudFilm can supply PEEK film in rolls or sheets, in a wide range of thicknesses from ultra-thin grades for flexible circuits to thicker grades for gaskets and structural parts. Width, thickness tolerance, winding length and core type can all be customized according to your project requirements.

Can PEEK film withstand sterilization or harsh environments?

Yes. PEEK film is well known for its ability to withstand high temperatures, steam and many chemicals, so it can endure repeated sterilization cycles and harsh environments in medical, aerospace and industrial applications. However, we recommend validating the specific sterilization method and conditions in your own process.

How can PEEK film be processed in production?

PEEK film can be slit, die-cut, laminated, thermoformed or bonded with adhesives depending on the application. Surface-treated grades can improve adhesion to copper, adhesives or other substrates. Our engineers can suggest suitable processing conditions based on your equipment and end-use.

What technical support and documentation does CloudFilm provide?

CloudFilm can provide technical data sheets (TDS), certificates of analysis (COA) and common regulatory documents such as RoHS and REACH statements. For key projects, our technical team can discuss design targets, recommend film grades and review test results together with your engineers.

What kind of company is CloudFilm?

CloudFilm (Qingdao Cloud Film Packaging Materials Co., Ltd.) is a professional manufacturer and supplier of high-performance film materials founded in 2002. We serve customers in more than 30 countries with BOPP, BOPET, BOPA, PE and speciality films such as PEEK and LCP, combining manufacturing experience with global export service.

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