Black PEEK seal ring

At Kriloha Ltd., we understand that in high-velocity applications, heat is the enemy of performance. Our Black PEEK Seal Rings are our engineered answer for “Friction-Reduction-Security” and “Thermal-Dissipation-Integrity.” As a premier manufacturer of customized polymer solutions, Kriloha utilizes specialized carbon-reinforced and graphite-filled PEEK grades to create seals that outlast and outperform standard engineering plastics.

The engineering of our black PEEK program is founded on Tribological-Optimization and Structural-Stiffness. By utilizing state-of-the-art 5-axis CNC machining, we achieve sub-millimeter accuracy on complex lip geometries and energized seal jackets. At Kriloha, we verify that the additive distribution is uniform across every ring, resulting in “Failure-Resistant” interfaces that provide consistent electrical conductivity and wear resistance across the entire service life of the component.

Manufacturing these advanced composite polymer seals involves strict Hardness-Testing, Surface-Roughness Calibration, and Dimensional Verification. We collaborate directly with your engineering teams to process bespoke configurations—including proprietary spring-energized designs and specialized internal relief angles. By choosing Kriloha Ltd., you are investing in a “Future-Proof” manufacturing partnership that optimizes your system’s efficiency through advanced material science and precision engineering.

Primary Use Cases

High-Speed Turbomachinery: Dynamic sealing rings for compressors and turbines where high RPMs generate significant frictional heat.
Semiconductor Handling: ESD-safe seal rings for wafer processing equipment where static electricity must be strictly controlled to prevent microchip damage.
Oil & Gas Downhole Tools: Ruggedized rings for logging-while-drilling (LWD) tools that encounter high-pressure/high-temperature (HPHT) and abrasive drilling muds.
Chemical Pump Components: Wear-resistant seals for pumps handling slurries or fluids with particulate matter that would quickly erode softer polymers.
Automotive Transmission Seals: High-performance rings used in modern gearboxes to maintain pressure while reducing parasitic drag.

Frequently Asked Questions

What makes the PEEK “Black,” and how does it benefit the seal?

The black color usually comes from Carbon Fiber, Graphite, or PTFE additives. These materials enhance the mechanical strength and provide self-lubricating properties, which are critical for dynamic seals where external lubrication is not possible.

Can Black PEEK seal rings prevent static electricity buildup?

Yes. Certain grades of black PEEK are specifically designed for ESD (Electrostatic Discharge) safety. This prevents static sparks in flammable environments and protects sensitive semiconductor components during manufacturing.

Is Black PEEK as chemically resistant as Virgin PEEK?

Absolutely. While the additives change the mechanical and electrical properties, the base PEEK matrix remains inert to almost all organic solvents, acids, and bases.

How does Black PEEK handle high-pressure extrusion compared to PTFE?

Black PEEK is significantly stiffer than PTFE. While PTFE will “extrude” (leak through gaps) under high pressure, the carbon reinforcement in Black PEEK allows it to bridge larger gaps and maintain a seal at pressures exceeding 10,000 PSI.

Are custom profiles available for existing metallic housings?

Yes. We specialize in precision CNC machining to achieve a perfect mechanical fit for your proprietary dimensions, ensuring the seal interfaces flawlessly with your existing stainless steel or ceramic-coated shafts.