Material focus
PEEK selection, applications, and sibling resin routing on this page.
PEEK
PEEK Injection Molding: Properties, Applications and Design Guide
PEEK is a peak-performance thermoplastic for chemical exposure, continuous high temperature, and aggressive mechanical loads.
PEEK
When to specify PEEK
How procurement and design teams use PEEK on injection molded programs.
PEEK is a peak-performance thermoplastic for chemical exposure, continuous high temperature, and aggressive mechanical loads. Carbon fiber and glass-filled PEEK grades push modulus toward metal territory at a premium resin price. Programs specify PEEK when PA, PPS, or PEI fail in testing; it is rarely a first-choice cost optimization resin. PEEK sits at the top of the thermoplastic performance range, so confirm PEI, PPS, or PPSU cannot meet the requirement before committing to its resin cost. At NetProto, programs run from first-article validation through production on one hardened steel tool with no minimum order quantity. Upload CAD on the instant quote platform for DFM feedback before tooling release.
Key traits
Why buyers specify PEEK
Engineering and sourcing highlights. No NetProto processing numbers on this page.
Sourcing
Grade and compliance context travels with CAD on the instant quote platform.
Program fit
First articles through production on one steel tool, no MOQ.
NetProto platform
Instant CAD quoting and DFM feedback before tooling release.
Tooling lead time
Hardened steel tool build in about 10 business days on qualified programs (part complexity dependent).
Applications
Where this resin shows up on BOMs
Typical molded parts and what to specify on the purchase order.
| Application | Why this resin | Specify on the PO |
|---|---|---|
| Oil and gas components | Chemical and temperature extremes | PEEK grade, fill, fluid list |
| Aerospace clips and spacers | Weight reduction vs metal | Flame and smoke requirements as customer filters |
| Medical hardware (non-implant) | Repeated sterilization cycles | Supplier-documented grades only |
| Bearing cages, bushings, and seal rings | Wear and creep in moving fits. Confirm the fill on the supplier TDS. | PEEK grade, fill, and lubrication notes from the buyer. |
RFQ
Ready to quote? Have this information ready
Prepare these details, then upload CAD on the instant quote platform.
Continuous use temperature and peak exposure
Chemical media list (fuels, steam, solvents)
Regulatory documentation your program requires (from the resin supplier)
Reinforcement: unfilled, glass, or carbon fiber
Critical tolerances for first-article inspection
Expected annual volume (helps cavity and tool planning)
Next step
Upload CAD for an instant quote
Grade not finalized? Note PEEK on the RFQ and attach environment notes.
Compare and explore
Related guides
Pairwise comparisons and sibling material pages.
PEEK vs Ultem
Heat and cost routing.
PEEK vs Ultem
PPS
Lower cost high-heat resin.
PPS
PTFE
Low friction fluoropolymer.
PTFE
Carbon fiber PEEK
Stiffer filled grade.
Carbon fiber PEEK
Materials library
Browse all resin guides.
Materials library
Reading a material datasheet
What the TDS values mean for a molded part.
Reading a material datasheetFAQ
PEEK injection molding FAQ
PEEK vs metal?
PEEK removes weight and corrosion when temperature and creep stay within resin limits.
Does every PEEK grade fit regulated healthcare programs?
No. Only specific supplier grades carry the documentation your program needs.
Does PEEK need drying?
Yes, high-performance resins still require strict drying before molding.
What is the minimum order quantity for molded parts at NetProto?
NetProto has no minimum order quantity on molded parts from your production tool. Upload CAD on the instant quote platform to scope tooling and part pricing for your volume.
How do I quote this resin without a final grade selected?
List the resin family on the RFQ, attach environment and compliance notes, and upload CAD. At NetProto, engineers use DFM review to narrow grades before tooling release.
Next step
Quote PEEK parts with your CAD
Upload geometry and list PEEK or the target grade on the instant quote platform.