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 )
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Extreme Temperature Performance
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Maintains mechanical integrity from cryogenic (-269°C) to high-heat (300°C) conditions – ideal for rocket components and semiconductor equipment.
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Superior Mechanical Strength
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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.
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Chemical Inertness
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Resists acids, alkalis, fuels, and solvents – perfect for chemical processing and oil/gas applications.
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Self-Lubricating & Low Friction
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Coefficient of friction is low eliminates need for external lubricants in vacuum environments.
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Ultra-Low Outgassing
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Spacecraft components with near-zero volatile emissions in vacuum
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VESPEL®Polyimide ( PI ) Applications Across Industries
Industry | Use Cases |
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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 |
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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
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Rods: Ø5mm–140mm (Cut-to-length available for some diameter )
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Sheets: 2mm–100mm thickness (Custom sizes supported)
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Tubes: Customized ID/OD for complex assemblies
2. Precision Machining Services
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CNC milling, turning, grinding with ±0.005mm tolerance
- Ultrasonic cleaning and vacuum packaging
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We have currently processed and customized vespel complex components for many aerospace, semiconductor, precision electronics, and medical customers, and have been recognized by them


Ready to Elevate Your Design?
Request a Quote in 3 Steps:
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Initiate an inquiry : send us your requirements or drawings by email
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Choose materials: Choose from VESPEL® SP-1, SP-21, SP 211,SP-3 grades.
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Get Delivery: Standard lead time 7-10 days (Expedited options available).
Contact Us Today:
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+86-0755-23094642
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mitc-bizdev@foxmail.com
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Visit our VESPEL® Product Page
Why Settle for Ordinary When You Can Have VESPEL® Polyimide ( PI )?
From prototype to production, trust our 10+ years of expertise in high-performance polymer solutions.