Product Overview:

The PEEK Insulator is a high-performance insulation component made from polyether ether ketone (PEEK)—a semi-crystalline, high-temperature-resistant engineering thermoplastic. Designed for demanding industrial applications, it provides outstanding thermal insulation, electrical resistance, and chemical stability, even in extreme environments. Whether used in 3D printers, semiconductor tools, electrical systems, or aerospace assemblies, the PEEK insulator ensures long-term reliability and precision.

Key Features:

• High Thermal Stability
  Operates continuously at up to 260°C (500°F), with short-term peaks up to 300°C, making it ideal for high-temperature applications.

• Excellent Electrical Insulation
  Dielectric strength > 17 kV/mm, ensuring protection in high-voltage or sensitive electronic environments.

• Chemical Resistance
  Withstands aggressive solvents, acids, and gases — ideal for semiconductor processing, chemical plants, and laboratory equipment.

• Mechanical Strength & Dimensional Stability
  High tensile strength and low thermal expansion ensure the insulator maintains form under stress and heat.

• Reusable & Durable
  Unlike PTFE or ceramic insulators, PEEK offers a longer service life under repeated thermal cycling and mechanical loads.

Typical Applications:

Advantages Over Other Insulators:

FAQ

1. Is PEEK a good electrical insulator?

Yes, PEEK (Polyether Ether Ketone) is an excellent electrical insulator. It has a high dielectric strength of over 17 kV/mm, low dielectric constant, and high surface resistivity (>10¹³ ohm-cm), making it suitable for use in high-voltage, high-frequency, and static-sensitive applications, especially in semiconductor, aerospace, and medical electronics.

2. Is PEEK better than PTFE?

PEEK and PTFE serve different purposes, but PEEK is generally considered superior in mechanical strength, thermal stability, and wear resistance:

• PEEK: High strength, withstands 260°C, resists wear and chemicals, and is suitable for structural and high-load applications.

• PTFE: Excellent chemical resistance and low friction, but soft, lower temperature resistance (~200°C), and prone to creep.

PEEK is preferred when durability, precision, and long-term stability are critical. PTFE is ideal for low-friction, chemically aggressive, but less mechanically demanding uses.

3. What are the disadvantages of PEEK?

Despite its high performance, PEEK has a few limitations:

• Cost: Significantly more expensive than conventional plastics.

• Machining Difficulty: Requires precise equipment due to its hardness and toughness.

• Limited UV Resistance: PEEK can degrade under prolonged UV exposure unless stabilized.

• Moisture Sensitivity During Processing: Needs to be dried properly before molding or extrusion.

4. What is PEEK used for?

PEEK is widely used in high-performance and mission-critical applications, including:

• Semiconductor equipment: Wafer handling, chamber insulation, test sockets

• Medical devices: Implants, endoscopic tools, sterilizable components

• Aerospace: Insulators, connectors, structural brackets

• Automotive: High-temperature bushings, seals, gears

• 3D printing: Hot end insulators, structural components