Thermal capability
Selected for applications that exceed the practical range of many common engineering plastics.
Plastic material
PEEK Manufacturing and Custom Parts
A high-performance plastic considered for heat, wear, and chemical resistance requirements.
- Heat resistant
- Chemical resistant
- Wear resistant
Material overview
High-performance polymer parts where ordinary plastics may be insufficient.
PEEK is considered for valve seats, electrical insulators, wear components, and precision parts exposed to demanding heat, chemicals, or repeated mechanical loads. Its cost and application-specific grades make disciplined material control important.
Machining is a practical route for prototypes and lower volumes, while injection molding requires a dedicated tooling and processing review. Grade, reinforcement, annealing history, and documentation should be included in the quality plan when function depends on them.
Key properties
Performance characteristics translated into manufacturing decisions.
Chemical resistance
Useful in demanding fluid and process environments after compatibility is verified for the exact grade.
Wear potential
Can support bearings, valve seats, and sliding components with suitable mating surfaces and loads.
Electrical behavior
Unfilled and specialty grades may support insulating components, subject to supplier data and design needs.
Suitable processes
Manufacturing routes for this material.
Compatible Surface Finishes
Surface options reviewed with the base material.
Typical applications
Common PEEK part families.
Valve seats
Electrical insulators
High-temperature bushings
Wear guides
Fluid-control components
Precision sealing interfaces
Design considerations
Control the features that affect function and process stability.
G 01
Use the exact commercial grade or approved equivalent on the drawing.
G 02
Identify sealing, wear, and electrically critical surfaces.
G 03
Review thin walls and sharp transitions for machining stability.
G 04
Define inspection temperature and material documentation needs.
Limitations
Requirements that need engineering review.
- Material and machining costs are higher than common plastics.
- Filled grades can be abrasive and direction-dependent.
- Tight tolerances need thermal and conditioning assumptions.
- The material name alone does not establish regulatory suitability.
RFQ checklist
Material details to include in the quotation package.
Clear requirements help engineering, finishing, inspection, and purchasing review the same target.
- 01Identify unfilled, glass-filled, carbon-filled, bearing, or other specialty grade explicitly.
- 02Ask for traceability and supplier documentation when performance or compliance depends on it.
- 03Stock-shape history and conditioning can matter for precision machining.
Related parts
Representative geometry from the parts gallery.
The PEEK valve seat is the direct material example. The other cards show related fluid and wear interfaces in alternative materials.
Related materials
Compare adjacent material options before freezing the drawing.
FAQ
PEEK questions from engineering and sourcing teams.
Can PEEK be CNC machined for prototypes?
Yes. Machining from qualified stock is often used for prototypes and lower volumes. Geometry, stock condition, heat control, and material traceability should be reviewed.
Are all PEEK grades interchangeable?
No. Unfilled, reinforced, bearing, and specialty grades can differ significantly. Substitution requires engineering approval and supporting material data.
Can Kewei select PEEK for my application?
Kewei can provide manufacturability input and source against a specified requirement. Final application suitability, compliance, and material approval remain with the customer's engineering team.
Start your RFQ
Upload your drawings and receive an engineer-reviewed quotation.
Share the material, process, quantity, finish, critical requirements, and delivery needs. contact@kewei-kw.com / +86-13929495765