The Ultimate High-Temperature Engineering Plastic
What is Vespel Polyimide ?
VESPEL® is DuPont™’s flagship high-performance polyimide (PI) material, engineered to outperform metals and ceramics in extreme environments. With unmatched thermal stability (-269°C to +300°C), chemical resistance, and self-lubricating properties, VESPEL® is the go-to solution for aerospace, semiconductor, automotive, and industrial applications.
5 Reasons Engineers Choose Vespel Polyimide ( PI )
-
Extreme Temperature Performance
-
Maintains mechanical integrity from cryogenic (-269°C) to high-heat (300°C) conditions – ideal for rocket components and semiconductor equipment.
-
-
Superior Mechanical Strength
-
Compression strength up to 220 MPa – and the wear resistance is more than 10 times that of ordinary plastics. It can replace metal for high-load parts such as bearings and gears.
-
-
Chemical Inertness
-
Resists acids, alkalis, fuels, and solvents – perfect for chemical processing and oil/gas applications.
-
-
Self-Lubricating & Low Friction
-
Coefficient of friction is low eliminates need for external lubricants in vacuum environments.
-
-
Ultra-Low Outgassing
-
Spacecraft components with near-zero volatile emissions in vacuum
-
VESPEL®Polyimide ( PI ) Applications Across Industries
Industry | Use Cases |
---|---|
Aerospace | Rocket nozzle insulators, satellite bearings |
Semiconductor | Wafer handling , plasma etcher parts |
Automotive | seals, EV battery insulation |
Medical | MRI cryogenic components, surgical tool guides |
Energy | Nuclear seals, deep-sea drilling parts |

VESPEL®Polyimide ( PI ) vs. Traditional Materials
Property | VESPEL® Polyimide ( PI ) | Ordinary plastics | Stainless Steel |
---|---|---|---|
Max Temp Resistance | 300-350°C | 70-250°C | Prone to oxidation |
Weight | 1.45 g/cm³ | 1.3-2.4 g/cm³ | 7.8 g/cm³ |
Chemical Resistance | Excellent | Moderate | Poor (corrodes) |
Maintenance | None required | Frequent replacement | Regular lubrication |
Why Choose Us for VESPEL® Polyimide ( PI )Solutions?
1. VESPEL®Polyimide ( PI ) Stock Shapes
-
Rods: Ø5mm–140mm (Cut-to-length available for some diameter )
-
Sheets: 2mm–100mm thickness (Custom sizes supported)
-
Tubes: Customized ID/OD for complex assemblies
2. Precision Machining Services
-
CNC milling, turning, grinding with ±0.005mm tolerance
- Ultrasonic cleaning and vacuum packaging
-
We have currently processed and customized vespel complex components for many aerospace, semiconductor, precision electronics, and medical customers, and have been recognized by them


Complete VespeL® Product Range
SP Series
- SP-1: Insulating parts in high-precision electronics, wear-resistant components in low-load devices.
- SP-21: Bearings, thrust washers, and sliding blocks for both lubricated and unlubricated industrial machinery.
- SP-211: Lubrication-free bearings in food processing equipment, low-friction sliding parts in medical devices.
- SP-22: Precision gears, sensor housings, and dimensional-critical components in high-temperature industrial ovens.
- SP-3: Seals and bearings in space exploration equipment, high-vacuum chamber internal parts.
Special Grades
SCP-5000: Insulating parts in semiconductor plasma etchers, chemical-resistant components in pharmaceutical equipment.
SCP-5050: Aerospace wear pads, glass manufacturing transfer components, high-temperature fasteners in automotive engines.


Ready to Elevate Your Design?
Request a Quote in 3 Steps:
-
Initiate an inquiry : send us your requirements or drawings by email
-
Choose materials: Choose from VESPEL® SP-1, SP-21, SP 211,SP-3 grades or SCP series
-
Get Delivery: Standard lead time 7-10 days (Expedited options available).
Contact Us Today:
-
+86-0755-23094642
-
mitc-bizdev@foxmail.com
-
Visit our VESPEL® Page