PEEK film combines outstanding thermal stability, mechanical fatigue resistance, and excellent dielectric strength. As a high-performance polymer material with high-temperature resistance, self-lubricating properties, and excellent chemical corrosion resistance, it is indispensable in specialized applications such as semiconductor manufacturing, flexible printed circuits (FPC), aerospace insulation, medical devices, electronics, automotive components, and speaker diaphragms. It is capable of withstanding demanding requirements involving high temperatures, high pressures, and high-speed operation in extreme environments. In addition, PEEK film is lightweight, recyclable, and compliant with environmental and safety standards.
To meet the stringent performance requirements of precision industries, CYLEX strictly uses natural-color PEEK materials to produce a wide range of high-purity continuous rolls and sheets. This not only eliminates the risk of carbon black contamination, but also ensures the pure dielectric performance required for critical substrate applications.
Regular size stock materials typically ship within 2-5 business days. Get a quote or inquire for more information about plastic materials.
Thickness : 0.008“,0.01″,0.016″, 0.02″,0.04”,0.06”,0.08”, 0.12”,0.2”
Thickness : , 0.2mm, 0.3mm, 0.4mm,0.5mm, 1mm, 1.5mm, 2mm, 3mm,5mm
Size:
24”x 40” (600X1000mm)
53.5″ X 40″(1360mm x 1000mm)
27″ X 40″(680mm x 1000mm)
24”x48”(610X1220mm)
Selecting the exact material gauge dictates product endurance under severe thermal and electrical loads. The comparison table below displays critical performance differences across film grades:
| Performance Property | Standard Commercial PEEK Film | CYLEX Semiconductor Grade | Engineering Advantage |
|---|---|---|---|
| Visual Color Profile | Tan / Dark Tint / Variable Black | Strictly Natural Colored PEEK | Eliminates conductive carbon tracks; ensures pure mechanical and electrical integrity. |
| Continuous Operating Temp | Up to 240°C | Up to 260°C | Maintains excellent dimensional stability during extreme thermal spikes. |
| Dielectric Strength (V/mil) | ~3,500 to 4,000 | > 5,000 (at ultra-thin gauges) | Provides superior electrical insulation across ultra-thin barrier configurations. |
| Thickness Range Availability | Standard 0.05mm – 1.0mm | Bespoke 0.006mm up to Custom Slitting | Supports specialized micro-miniaturized electronic and custom aerospace setups. |
| Chemical Inherent Purity | Standard industrial batching | Ultra-low outgassing; minimal extractables | Perfect for high-vacuum, high-cleanliness semiconductor backend test chambers. |
Unlike standard polyimide (PI) films which suffer from high moisture absorption issues, PEEK thin-film options maintain incredibly low water absorption metrics (near zero). This chemical hydrophobicity guarantees that the film’s outstanding dielectric constant remains flat and predictable, even when deployed in humid environments or subjected to corrosive chemical baths during electronic etching steps.
Due to its high crystalline matrix elongation properties, specialized thin-gauge PEEK layouts offer unparalleled flex fatigue limits. It can endure millions of dynamic flex cycles without micro-void propagation, making it the supreme base substrate choice for durable speaker cones, high-frequency transducers, and robust sensors.
PEEK film also has the following key features:
Peel resistance: It can be made into a very thin electromagnetic wire and maintain stable performance under harsh conditions.
Fatigue resistance: It has the best fatigue resistance among all resin films and is particularly suitable for applications in alternating stress environments.
Self-lubricating property: It has outstanding sliding properties and is suitable for low friction coefficient and wear resistance.
Chemical resistance: Only concentrated sulfuric acid can dissolve or destroy it, and its corrosion resistance is similar to that of nickel steel.
Flame retardancy: It can reach the highest flame retardant standard without adding any flame retardant, and meets relevant international standards.
Hydrolysis resistance: It is not chemically affected by water and high-pressure water vapor, and is suitable for applications in high-temperature and high-pressure water.
High sound clarity: Avoid “auditory fatigue” caused by the noise of metal film and achieve better acoustic performance.
PEEK film is widely used in many fields due to its excellent comprehensive performance:
Aerospace field: It is used to make blades, turbine disks, valves and other parts of aircraft engines, and can withstand high temperature, high pressure and high speed in extreme environments.
Medical device field: used to make artificial joints, dental implants, surgical instruments and other parts, with excellent biocompatibility and chemical stability.
Electronic products field: used to make high-performance electronic components, sensors, battery separators and other parts, with high temperature stability, low dielectric constant and low dielectric loss.
Auto parts field: used to make valve plates, friction materials, seals and other parts, able to withstand the high temperature, high pressure and high speed environment requirements of automobile engines.
PEEK film is lightweight, recyclable, and complies with RoHS standards (directive on the restriction of the use of certain hazardous ingredients in electrical and electronic equipment) and the requirements of the US Food and Drug Administration (FDA). Therefore, it also has significant advantages in environmental protection and safety.
Natural-colored PEEK material contains no recycled regrind or artificial color pigments (such as carbon black). Pigment-free chemical purity ensures that the ultra-thin film delivers maximum dielectric strength, uniform resistance, and zero structural micro-impurities that could trigger localized electrical arcing.
CYLEX high-purity PEEK films safely handle continuous thermal exposure up to 240°C–260°C (464°F–500°F). They maintain original tensile profiles and structural integrity while providing flawless performance during short-duration soldering heat spikes up to 300°C.
While both provide exceptional thermal protection, PEEK film excels due to its vastly superior chemical resistance and near-zero water absorption properties. Polyimide absorbs moisture, which can degrade its electrical insulation characteristics. PEEK remains entirely hydro-stable and offers cleaner die-cutting characteristics with less tool wear.
Yes. Under the CYLEX brand, we offer custom non-standard slitting, precision laser die-cutting, and custom thickness fabrication down to ultra-thin micro-meters. This caters precisely to specialized semiconductor test setups and aerospace insulation requirements.
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100% new material Supply 100% new material plastic sheets, rods and customized parts, excellent quality, export-grade standards, professional processing to meet diverse needs.
The use of advanced technology ensures that the material surface is smooth and flawless, without pores, and has a delicate touch, perfectly presenting the unique charm of high-quality plastic sheets and parts.
All materials undergo rigorous performance tests to ensure that strength, weather resistance and other indicators meet standards, providing customers with reliable and durable plastic sheets and parts.
Every link is strictly controlled and accurately measured to ensure the size is correct and meet high-precision requirements, providing customers with perfectly matched customized solutions for plastic sheets and parts.
With a wide variety of products and sufficient inventory, we can quickly respond to customer needs and meet purchasing needs in one stop.
We are committed to providing high-quality services throughout the entire process. From consultation to after-sales, our professional team is on standby at all times to ensure customer satisfaction and create a worry-free purchasing experience.
Professional packaging and delivery to ensure that the transportation is intact, and to develop a reasonable price logistics method.
We are manufacturer.
If in stock, it usually takes 5-10 days. Or if the goods are not in stock, it is 15-20 days, depending on the quantity.
Yes, samples are provided for free, you only need to bear the shipping cost. Customized samples require a fee.
The payment term is flexible. We accept T/T, L/C, Paypal and Ali online payment.
Please don’t worry, our factory has 20 years of professional production experience. Our products are widely used in Europe, North America, Southeast Asia, Africa and other countries.
We have many years of after-sales guarantee. If you have any questions during the use of the product, you can contact us at any time.
Yes, every step before loading will be carefully inspected to ensure that the product you receive is in good condition.
We can customize the size of the product according to your requirements. Commonly used sizes include 1220*2440mm, 1220*610mm, 910*2440mm, 910*1830mm, 610*2440mm, 610*1830mm, etc.
Yes, we can produce according to the samples or drawings you provide.
Take 1220*2440*12.7mm as an example. The minimum order quantity is 10 pieces.
Goods packaging: PE bags, PE film, cartons, wooden pallets. For small items, you can choose express delivery: Fedex, DHL, UPS, SF Express, etc. For large items, you can choose land and sea transportation. Also choose the transportation method according to customer requirements.
