PEEK
Highest-performance thermoplastic for extreme environments
PEEK (Polyether Ether Ketone) combines 250°C continuous heat resistance, excellent chemical inertness, and high mechanical strength in one material — making it the benchmark engineering plastic for aerospace, semiconductor, and medical applications. MK Industrial & Co.® supplies PEEK sheets, rods and tubes in Bangalore and Karnataka.
About PEEK
PEEK (Polyether Ether Ketone) is a semi-crystalline high-performance thermoplastic that retains exceptional mechanical properties from cryogenic temperatures to 250°C. It is the material of choice wherever conventional engineering plastics fail under sustained heat, aggressive chemicals, or cyclic mechanical loading.
MK Industrial & Co.® stocks unfilled natural PEEK (grade 450G), ESD-safe carbon-filled PEEK, glass-fibre reinforced PEEK GF30, and carbon-fibre filled PEEK CF30 in sheets, rods, and tubes — available in standard dimensions and custom cut-to-size across Bangalore and Karnataka.
PEEK is prized industry-wide for its radiation resistance and dimensional stability under moisture, and is commonly specified in semiconductor wafer handling, medical device tooling, aerospace structural brackets, and oil & gas downhole components. Where a specific certification (such as ISO 10993 biocompatibility) is required for your application, please confirm the exact grade and request the relevant data sheet before ordering.
Key Properties
| Property | Value |
|---|---|
| Tensile Strength | 100 MPa (unfilled natural grade) |
| Max Continuous Service Temperature | 250°C (310°C short-term) |
| Melting Point | 340°C |
| Density | 1.31 g/cm³ |
| Tensile Modulus | 3.9 GPa |
| Moisture Absorption | 0.20% (air, 50% RH) / 0.45% (water saturation) |
| Flame Rating | UL94 V-0 |
| Chemical Resistance | Excellent — resistant to most acids, solvents, fuels |
| Surface Resistivity (ESD-safe grades) | Typically 10⁶–10⁹ Ω for carbon-filled grades (published industry range) |
* Values above are from our supplier technical data sheet for unfilled natural PEEK. Filled and ESD grades vary — full data sheets available on request.


