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PEEK Plastic Sheet: Properties, Applications & Manufacturing Guide 2026
Key Properties of PEEK Plastic Sheet
PEEK sheets offer a remarkable combination of physical and thermal properties:
l Continuous service temperature: up to 250°C (482°F)
l Tensile strength: 90–100 MPa (unfilled grade)
l Melting point: 343°C (649°F)
l Density: 1.32 g/cm³ (unfilled)
l Low flammability: UL94 V-0 rated at 1.45mm thickness
l Excellent chemical resistance across a wide pH range
l Inherent flame retardancy without additives
l Low smoke and toxic gas emission during combustion
These properties make PEEK sheet the material of choice when metals are too heavy, commodity plastics cannot survive the temperature, and other engineering plastics fall short on chemical stability.
Manufacturing Process
NAGOMER manufactures PEEK sheets through compression moulding from virgin PEEK resin. The process involves:
Resin preparation — drying PEEK granules to <0.02% moisture content to prevent degradation during melting.
Compression moulding — heating resin between 380–400°C under controlled pressure to form sheets of uniform density.
Controlled cooling — gradual cooling to ensure optimal crystallinity (typically 30–35%), which directly impacts mechanical performance.
Surface finishing — sheets are machined or ground to achieve the required thickness tolerance and surface roughness.
Standard sheet sizes include 1000×2000mm, 1220×2440mm, and custom dimensions. Thickness ranges from 1mm to 100mm.
Common Applications
PEEK plastic sheets are used across multiple high-value industries:
· Semiconductor — wafer carriers, CMP ring guides, test sockets
· Medical — sterilisable surgical instrument components, dental abutments
· Aerospace — cabin interior trim, ducting, electrical connectors
· Oil & gas — downhole seals, backup rings, electrical insulation
· Food processing — FDA-compliant conveyor components, guide rails
PEEK Sheet Grades Available from NAGOMER
| Grade | Description | Key Application
| NGM-S12B (Natural) | Unfilled, virgin PEEK | Medical, food contact, semiconductor
| NGM-S12B-BK (Black) | Carbon black filled | UV resistance, general industrial
| PEEK GF30 | 30% glass fibre filled | Structural, high-rigidity components
| PEEK CF30 | 30% carbon fibre filled | Static-dissipative, high-strength parts
| PEEK Mod | PTFE + graphite + carbon filled | Bearing and wear applications
Why Choose NAGOMER as Your PEEK Sheet Supplier?
NAGOMER operates an ISO 9001-certified manufacturing facility in China, delivering PEEK sheets with full material traceability, RoHS/REACH compliance, and consistent batch-to-batch quality. Our technical team supports customers with material selection, custom cutting, and CNC machining services.
For more on PEEK rod products, see our Natural PEEK Rod NGM-S12B guide. To compare PEEK with other high-performance plastics, read our PEEK vs PTFE comparison.
FAQ
Q1: What is the maximum operating temperature of PEEK plastic sheet?
PEEK plastic sheet has a continuous service temperature of 250°C (482°F) and a short-term maximum of up to 300°C. The melting point is 343°C.
Q2: Is PEEK sheet food safe and FDA compliant?
Yes, unfilled natural PEEK (such as NAGOMER‘s NGM-S12B grade) is FDA compliant and meets EU food contact regulations. It is also USP Class VI and ISO 10993 compliant for medical applications.
Q3: Can PEEK sheets be machined with standard CNC equipment?
Yes, PEEK can be machined with standard CNC milling and turning equipment using carbide or diamond tools. However, specialized parameters for speed, feed, and cooling are required to prevent surface defects. NAGOMER offers custom CNC machining services for PEEK components.
Q4: What standard thicknesses are available for PEEK sheets?
NAGOMER supplies PEEK sheets in thicknesses from 1mm to 100mm. Standard sheet sizes include 1000×2000mm and 1220×2440mm. Custom dimensions are available upon request.
Q5: How does PEEK compare to PTFE in terms of chemical resistance?
Both PEEK and PTFE offer excellent chemical resistance, but PEEK has superior mechanical strength and temperature resistance. PTFE has broader chemical inertness but much lower structural integrity. See our PEEK vs PTFE comparison guide for details.
Ready to source quality PEEK plastic sheets? Contact NAGOMER today for a free quote, or browse our PEEK sheets, POM rods, and ESD materials.
NAGOMER — Professional Engineering Plastics Solutions
www.nagomer.com | info@nagomer.com