Cylex Plastics supplies unfilled and filled polyimide (PI) materials for components that must perform under heat, mechanical load, or repeated sliding contact. Our PI grades offer material options for engineers evaluating high-performance polyimide in bearings, seals, semiconductor test components, and precision machined parts.
Choose from unfilled PI and formulations containing graphite, PTFE, or molybdenum disulfide. We can help review the grade, shape, dimensions, and documentation required for your application
Regular size stock materials typically ship within 2-5 business days. Get a quote or inquire for more information about plastic materials.
| CYLEX Grade | Composition | Typical Consideration |
|---|---|---|
| PI-350-1 | Unfilled polyimide | Components requiring an unfilled PI formulation |
| PI-350-21 | Polyimide + 15% graphite | Bearings, bushings, and other wear components |
| PI-350-22 | Polyimide + 40% graphite | Applications evaluating a higher graphite content |
| PI-350 GP | Polyimide + 10% PTFE + 15% graphite | Sliding components where friction and wear are key considerations |
| PI-MS | Polyimide + 15% molybdenum disulfide | Wear components being evaluated for dry or vacuum environments |
The most suitable grade depends on operating temperature, load, speed, mating surface, environment, and part geometry.
Please share your application requirements so we can review material suitability before quoting.
Ask us about PI sheet, rod, cut-to-size material, and custom machined components. Available dimensions and lead times depend on the grade and requested quantity. For a machined part, send us a drawing with the material callout, tolerances, quantity, and any inspection or documentation requirements.
● Bearings, bushings, thrust washers, and wear rings
● Seals and valve components
● Semiconductor test sockets and contactor components
● Precision parts for equipment operating at elevated temperatures
● Electrical or mechanical components requiring application-specific material review
If your drawing specifies another polyimide grade, send us the complete material specification. We can review the formulation and available test data against your requirements. A similar filler description alone does not establish equivalent performance or compliance with a specified standard; any substitution should be approved through your engineering and purchasing process.
Polyimide PI Sheet Size | |||||
| >Thickness (inches) | >Thickness(mm) | >Width × Length(inches) | >Width × Length(mm) | >Unit Weight（KG/pcs） | >Unit Weight（lbs/pcs） |
| 0.031″ | 0.79mm | 10″X10″ | 254x254mm | 0.074KGS | 0.162LBS |
| 0.062″ | 1.57mm | 10″X10″ | 254x254mm | 0.147KGS | 0.325LBS |
| 0.093″ | 2.36mm | 10″X10″ | 254x254mm | 0.221KGS | 0.487LBS |
| 0.125″ | 3.18mm | 10″X10″ | 254x254mm | 0.297KGS | 0.655LBS |
| 0.125″ | 3.18mm | 5″X10″ | 127x254mm | 0.149KGS | 0.327LBS |
| 0.187″ | 4.75mm | 5″X5″ | 127x127mm | 0.111KGS | 0.245LBS |
| 0.187″ | 4.75mm | 10″X10″ | 254x254mm | 0.444KGS | 0.980LBS |
| 0.250″ | 6.35mm | 10″X10″ | 254x254mm | 0.594KGS | 1.310LBS |
| 0.250″ | 6.35mm | 5″X10″ | 127x254mm | 0.297KGS | 0.655LBS |
| 0.250″ | 6.35mm | 5″X5″ | 127x127mm | 0.149KGS | 0.327LBS |
| 0.375″ | 9.53mm | 10″X10″ | 254x254mm | 0.891KGS | 1.964LBS |
| 0.375” | 9.53mm | 5″X10″ | 127x254mm | 0.446KGS | 0.982LBS |
| 0.437″ | 11.10mm | 10″X10″ | 254x254mm | 1.038KGS | 2.289LBS |
| 0.500″ | 12.70mm | 10″X10″ | 254x254mm | 1.188KGS | 2.619LBS |
| 0.500″ | 12.70mm | 5″X10″ | 127x254mm | 0.594KGS | 1.310LBS |
| 0.500″ | 12.70mm | 5″X5″ | 127x127mm | 0.297KGS | 0.655LBS |
Polyimide PI Rod Size | |||||
| >Diameter(inches) | >Diameter(mm) | >Length(inches) | >Length(mm) | >Unit Weight (KG/pcs) | >Unit Weight (lbs/pcs) |
| 1/4″ | 6mm | 38″ | 965.2mm | 0.040KGS | 0.087LBS |
| 5/16″ | 8mm | 38″ | 965.2mm | 0.070 KGS | 0.155LBS |
| 3/8″ | 10mm | 38″ | 965.2mm | 0.110KGS | 0.242LBS |
| 1/2″ | 12mm | 38″ | 965.2mm | 0.158KGS | 0.349LBS |
| 5/8″ | 15mm | 38″ | 965.2mm | 0.247KGS | 0.545LBS |
| 3/4″ | 20mm | 38″ | 965.2mm | 0.439KGS | 0.969LBS |
| 1″ | 25mm | 38″ | 965.2mm | 0.687KGS | 1.514LBS |
| 1-1/4″ | 30mm | 38″ | 965.2mm | 0.989KGS | 2.180LBS |
| 1-3/8″ | 35mm | 38″ | 965.2mm | 1.346KGS | 2.967LBS |
| 1-1/2″ | 40mm | 38″ | 965.2mm | 1.794KGS | 3.955LBS |
| 1-3/4″ | 45mm | 38″ | 965.2mm | 2.271KGS | 5.006LBS |
| 2” | 50mm | 38″ | 965.2mm | 2.803KGS | 6.180LBS |
PI350 Sheet Size | |||||
| >Thickness (inches) | >Thickness(mm) | >Width × Length(inches) | >Width × Length(mm) | ||
| 0.12″–2″ | 3-50mm | 7.9″X5.9″ 12″X6.3″ 12″X12″ 7.87″X20″ | 200*150mm 300*160mm 300*300mm 200*510mm | ||
PI350 Rod Size | |||||
| >Diameter (inches) | >Diameter(mm) | >Length(inches) | >Length(mm) | ||
| 0.25″–2″ | 6-50mm | 40″ | 200mm 300mm 510mm | ||
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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.
