Ideal Plastic manufacturer specializes in custom fabrication of DuPont™ Vespel SP-22 Parts. Leveraging mature hot pressing, precision machining and advanced laser cutting processes, we deliver tailor-made PI graphite-filled parts with micrometer-level accuracy. Backed by standardized quality control systems and complete production facilities, we provide reliable custom solutions for global high-end precision industrial clients. Contact us!
Ideal Plastic factory produces quality Vespel SP-22 Parts. Vespel SP-22 is a high-purity polyimide (PI) composite material reinforced with 40% graphite filler, engineered exclusively for ultra-stable dimensional performance and extreme working condition adaptability. This modified thermosetting polymer features no fixed melting point, retaining robust structural rigidity and creep resistance at temperatures above 260°C. Optimized for high pV value, high friction and continuous wear scenarios, it delivers extended service lifespans and reduced equipment maintenance costs. Thanks to its low outgassing and high-purity composition, Vespel SP-22 machined parts are ideal for ultra-clean industrial environments including vacuum systems, semiconductor manufacturing and aerospace precision equipment.
Distinguished by its 40% high-content graphite filling formula, Vespel SP-22 achieves industry-leading dimensional stability and minimal thermal expansion, outperforming conventional pure PI and low-graphite modified polyimide materials. The homogeneous graphite filler effectively suppresses thermal deformation and structural creep under high temperature and high humidity, making it the preferred material for precision parts requiring ultra-tight tolerance control.
Our core processing advantage for Vespel SP-22 components lies in professional laser cutting technology, supporting precision machining within 1–50 micrometer tolerance. The non-contact processing mode eliminates mechanical stress, completely avoiding deformation, delamination and burr defects common in traditional molding and cutting methods. With an ultra-small heat-affected zone, the process prevents material carbonization and performance loss, fully preserving the substrate’s high-temperature resistance, insulation and mechanical stability. This flexible processing solution perfectly adapts to complex micro-structure customization, micro-hole and narrow-slot component production, as well as small-batch prototype orders.
Vespel SP-22 precision laser cutting requires strict production condition matching to guarantee finished product quality. The process demands high-precision professional equipment, 99.9%+ high-purity CO₂ auxiliary gas and dedicated cooling systems, resulting in relatively high production investment. For material thickness exceeding 5mm, cutting efficiency decreases slightly, and localized heat accumulation may cause edge warping or melting if parameters are improperly set.
Our professional technical team precisely calibrates laser power, cutting speed and cooling parameters according to material thickness and structural complexity, eliminating burning, penetrating and edge defect risks. Strict process control ensures every customized Vespel SP-22 part maintains consistent dimensional accuracy and intact material performance.
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Product name |
Vespel SP-22 machined parts |
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Material |
40% graphite filler |
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Color |
black |
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Density |
1.51 g/cm³ |
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Site |
custom |
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Drawing formats |
2D and 3D drawings or templates in commonly used formats such as STEP, STP, STL, IGS, IGES, PRT, SLDPRT, SAT, X_T, etc. |
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Tolerance |
According to the drawings |
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sample |
Negotiation |
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Minimum order quantity |
1 piece |
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Certificates |
ISO9001:2008, REACH, ROHS |

Vespel SP-22 features the ultra-low thermal expansion coefficient among conventional polyimide materials, with thermal expansion performance close to aluminum alloy. Its unique graphite filling formula delivers balanced high-temperature resistance, wear resistance and dimensional stability, making it irreplaceable for high-precision components operating in extreme temperature and friction environments.
Benefiting from stable graphite structural characteristics, Vespel SP-22 maintains negligible dimensional variation under high-temperature and high-humidity working conditions. It effectively avoids precision deviation caused by thermal expansion and contraction, perfectly matching the strict tolerance requirements of precision instruments and semiconductor equipment components.
The material retains stable mechanical performance and structural integrity under long-term high-temperature air working environments. It boasts outstanding creep resistance, resisting permanent deformation under continuous high load and high-temperature stress, ensuring long-term stable operation of mechanical parts.
40% high-density graphite filling endows the material with excellent self-lubricating and anti-wear properties, adapting to high pV value, high-speed friction and heavy-load working scenarios. It effectively reduces component wear and equipment operating friction loss, lowering long-term maintenance frequency and operational costs.
Vespel SP-22 delivers reliable chemical corrosion resistance against conventional industrial corrosive media. It features excellent UV resistance and high-energy radiation tolerance, maintaining stable physical and mechanical properties in complex radiation environments. In addition, the material is self-extinguishing with low flammability, meeting high-standard industrial safety specifications.
With high-purity formula design, Vespel SP-22 produces extremely low gas volatilization, adapting to ultra-clean vacuum and sterile industrial environments. It avoids pollution and performance interference caused by material outgassing, suitable for high-standard semiconductor, aerospace and precision vacuum equipment applications.
Tailored for extreme and high-precision industrial working conditions, Vespel SP-22 machined parts are widely adopted in multiple high-end fields that demand strict dimensional stability, high temperature resistance and wear resistance, replacing traditional metal and ordinary plastic components to optimize equipment performance and service life.
Applied to aviation structural accessories, precision metering equipment, timers, sensor shells and core measuring components. Its ultra-low thermal expansion ensures consistent precision of detection and operating parts in variable temperature environments.
Suitable for high-wear core components such as mechanical bearings, piston rings and compressor valve plates. It adapts to high-temperature, corrosive and heavy-load working conditions in petrochemical and chemical engineering industries, improving equipment durability.
Widely used for micro-component packaging, coil frameworks, motor shell accessories and relay precision parts. The material’s stable insulation, dimensional accuracy and low outgassing performance meet the high-precision manufacturing standards of electronic and electrical equipment.
1. Established in 2011 with Hong Kong registration and a production & R&D base in Guangzhou Huangpu District, Guangzhou Ideal Plastic Technology Co., Ltd. is a professional high-tech manufacturer focusing on high-performance special engineering plastic customization and precision processing. With over ten years of in-depth experience in polyimide composite material production, we have built a complete and standardized quality management system.
2. Our factory is equipped with full-range advanced production and testing equipment, including large-scale profile production lines, 4/5-axis CNC machining centers, precision engraving machines and professional laser cutting equipment, supporting integrated processing of Vespel SP-22 from raw material profiles to finished precision parts. We adopt high-quality domestic and international brand raw materials with complete batch material reports, and implement full-process quality monitoring from raw material screening, precision processing to finished product testing.
3. All products pass ISO9001:2008 quality system certification, SGS, CE, ROHS and REACH environmental compliance tests, complying with EN71 industry standards. Supported by a professional technical team and independent laboratory testing equipment, we strictly control every production link to ensure stable batch performance and consistent dimensional accuracy of customized Vespel SP-22 parts, serving global clients across multiple industries.
- Full-Scale Customization Support: Accept diverse mainstream 2D/3D design files and physical sample copying, providing targeted structural optimization and personalized processing solutions based on customer project demands.
- Low-Batch & Prototype Friendly: Support single-piece production for standard semi-finished profiles and flexible small-batch customized component processing, meeting prototype testing and mass production demands of different projects.
- Precision Quality Assurance: Adopt multi-process precision inspection and professional performance testing to guarantee dimensional tolerance accuracy and stable mechanical properties of finished parts.
- Complete Qualification Support: Provide standardized factory inspection reports and full compliance certification documents to support customer project verification and audit work.
- Efficient Production Cycle: Rely on mature PI composite processing technology and complete equipment configuration to ensure on-time delivery while maintaining high product quality.
We’re equipped with large-scale profile production lines, a range of CNC machines and machining centers (including 4-axis and 5-axis models), engraving machines, laser cutting equipment, and a Class 100,000 cleanroom for injection molding.
All raw materials are sourced from authoritative brand suppliers with complete batch material certification reports. Supported by a standardized quality management system and professional laboratory testing equipment, our technical team conducts full-process performance monitoring and finished product verification to ensure all products reach industry-leading performance standards.
We support all mainstream 2D and 3D design file formats including STEP, STP, STL, IGS, IGES, PRT, SLDPRT, SAT and X_T. Customers can also provide physical samples, and our team will complete data scanning, copying and personalized design optimization.
Our factory holds ISO9001:2008 quality management system certification. All customized Vespel SP-22 components pass SGS and CE testing, fully complying with ROHS, REACH and EN71 international environmental and safety standards.
Get in touch to acquire tailored Vespel SP-22 precision component solutions and accurate project quotations!