Engineering & Procurement Note: Cylexpro® Polyimide is a class of high-performance aromatic polyimide materials specifically engineered for extreme operating environments. By integrating exceptional thermal stability, ultra-high mechanical strength, low coefficient of linear thermal expansion (CLTE), and superior chemical resistance, it serves as an indispensable material for semiconductor test fixtures, aerospace insulation inserts, high-end precision machinery, and automotive electronics
Regular size stock materials typically ship within 2-5 business days. Get a quote or inquire for more information about plastic materials.
CYLEXPRO is a premium line of high-performance, semiconductor-grade materials developed by CYLEX.
Exceptional Mechanical Strength, Stiffness, and Dimensional Stability: Exhibits an extremely low creep rate under continuous heavy mechanical loads, ensuring long-term structural integrity and preventing deformation of precision components.
Retains High Strength at Elevated Temperatures: Maintains a major percentage of its room-temperature tensile and flexural modulus even under continuous exposure to extreme high-temperature environments.
Outstanding Micro-Hole Machinability: Possesses a highly dense and homogeneous material structure, making it ideal for precision micro-hole drilling and complex micro-machining without micro-cracking or edge chipping. This makes it perfectly suited for semiconductor test sockets and fine-pitch probe cards.
Excellent Wear Resistance and Self-Lubricating Properties: Delivers an exceptionally low wear rate and coefficient of friction, even in non-lubricated high-friction environments and ultra-high vacuums.
Outstanding Radiation Resistance and Inherent Flame Retardancy (UL94 V-0): Naturally resistant to high doses of radiation and achieves top-tier flame retardancy with extremely low smoke emission without adding any chemical retardants.
Electronics & Semiconductors: IC probe card structural components, test socket insulation plates, wafer handling clamps, wear-resistant vacuum nozzles, and wafer sustainer rings.
Aerospace: High-temperature vacuum seals, electrical insulation washers, insulating bushings, and valve seats.
Precision Machinery: High-speed wear-resistant bearings, high-temperature and high-pressure valves, plunger pump parts, and premium engineering gears.
Automotive Industry: Powertrain electrical connectors, high-temperature actuator bushings, and wear pads for exhaust gas recirculation (EGR) valves.
| Grade | Grade Level | Continuous Use Temperature | Core Application Direction |
|---|---|---|---|
| Cylexpro® S201 | Standard Grade | 260–360 °C | High cost-performance baseline grade with excellent rigidity and creep resistance, widely used in standard semiconductor tooling and aerospace fasteners. |
| Cylexpro® S501 | High Performance Grade | 320–450 °C | Extreme high-temperature grade with higher transient thermal limits, designed for harsh thermal test environments and structural parts inside high-vacuum plasma sputtering chambers. |
To assist R&D engineers in selecting the exact material tailored to specific working conditions, the following technical matrix compares Cylexpro® PI with other common high-performance engineering plastics:
| Physical / Mechanical Property | Cylexpro® S201 (PI) | Cylexpro® S501 (PI) | High-Performance PEEK | POM-H + PTFE |
|---|---|---|---|---|
| Continuous Use Temp. (°C) | 260–360 | 320–450 | 240–260 | 90–100 |
| Mechanical Strength & Modulus (At High Temp.) | Extremely High (Excellent retention up to 400°C) | Peak Performance (Metal-like rigidity) | High (Stiffness decreases significantly above 150°C) | Moderate (Limited to ambient and low-temp use) |
| Micro-Hole Machinability | Outstanding (Sharp edges, zero burrs; ideal for IC boards) | Excellent (High density, micron-level stability) | Good (High toughness; requires strict cutting heat control to prevent burrs) | Fair (Prone to cutting-induced deformation) |
| Vacuum Outgassing Rate | Extremely Low (Ideal for ultra-high vacuum) | Ultrafast Ultra-Low (First choice for space and cleanrooms) | Low | High (De-polymerizes and releases formaldehyde monomer at high temp) |
Cylex offers extensive inventory and robust custom fabrication capabilities for premium-quality sheets and rods, supporting high-precision batch machining according to your engineering prints:
| Shape | Diameter / Thickness | Width | Length | Notes | |||
|---|---|---|---|---|---|---|---|
| (mm) | (inch) | (mm) | (inch) | (mm) | (inch) | ||
| Rod | 5 ～ 50 | 0.20 ～ 1.97 | – | – | 260 | 10.24 | Supports customizable lengths, custom diameters, and optimized performance formulations based on your operating requirements. |
| 5 ～ 50 | 0.20 ～ 1.97 | – | – | 600 | 23.62 | ||
| Sheet | 5 ～ 50 | 0.20 ～ 1.97 | 260 | 10.24 | 260 | 10.24 | Provides standard stock plates and professional cut-to-size blocking services. Thickness tolerances are strictly maintained beyond industrial standards. |
| 5 ～ 50 | 0.20 ～ 1.97 | 300 | 11.81 | 600 | 23.62 | ||
Q: Why are Cylexpro® PI materials preferred over PEEK for semiconductor test fixtures and IC test sockets? A: Although PEEK is an excellent engineering plastic, its mechanical rigidity and modulus undergo a significant physical transition when working temperatures exceed 150°C (its glass transition temperature is approximately 143°C). In contrast, Cylexpro® PI maintains extreme dimensional accuracy and pitch precision well above 300°C. Furthermore, when drilling dense micron-level probe holes, PI offers perfect brittle chip formation, yielding smooth inner walls completely free of burrs. Due to its high toughness, PEEK often suffers from elastic deformation during drilling and creates micro-burrs, which can restrict the smooth movement of test probes.
Q: How do I choose between Cylexpro® S201 and Cylexpro® S501 grades? A: For the vast majority of conventional high-temperature wear resistance, electrical insulation, and applications running below 300°C, Cylexpro® S201 (Standard Grade) delivers top-tier performance with excellent cost efficiency. However, if your environment involves extreme high-temperature ovens, plasma etching chambers, or critical outer aerospace assemblies where temperatures regularly exceed 320°C or approach 450°C, Cylexpro® S501 must be specified to ensure the polymer does not suffer from thermal decomposition or structural creep.
Q: Does Cylex provide custom services for non-standard sizes or finished components? A: Yes, absolutely. Cylex is equipped with large-scale CNC machining centers and advanced modern workshops. Beyond stocking our standard 260mm and 600mm rods and sheets, we fully support custom thicknesses and non-standard widths via specialized extrusion or compression molding. We can also process your engineering files directly (CAD/STEP formats) to deliver a seamless, one-stop solution from raw engineering stock to final ultra-precision machined PI parts.
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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.
