What is PEEK Polyetheretherketone

DOMO PEEK 3350R30 is a high-performance engineering plastic based on PEEK polyetheretherketone. It combines heat resistance, structural strength, and electrical insulation, making it suitable for long-term operation in high-temperature, high-load, and chemically aggressive environments. Known for its stability, reliability, and processing flexibility, this material is a promising alternative to metals and traditional engineering plastics.

01 | Material Highlights

High-temperature resistance and dimensional stability

PEEK 3350R30 maintains structural integrity and resists deformation in high-temperature environments, making it a popular material for demanding precision components.

Balance of rigidity and toughness

The material's internal crystalline structure provides both high modulus and excellent impact absorption, making it suitable for dynamic mechanical components.

Excellent flame retardancy and electrical insulation

UL94 V-0 certification and high volume resistivity ensure safe operation of electrical equipment.

Strong chemical inertness and outstanding wear resistance

Excellent resistance to acids, bases, and organic solvents, along with a low coefficient of friction, significantly extends component life.

Predictable Processing Performance

The material's stable flowability makes it suitable for thin-walled parts and high-precision injection molding.

02 | Main Applications

  ・Aerospace: Structural parts, insulation components, and high-temperature fasteners

  ・Automotive: Electric drive system housings, sensor brackets, and fuel system components

  ・Electronics and Electrical: Connectors, relay housings, and high-temperature insulation components

  ・Medical and Laboratory Equipment: Sterilizable components, analyzer housings, and structural supports

  ・Energy and Chemical Equipment: Seals, valve seats, pump bodies, and high-pressure system components

These applications fully demonstrate the value of PEEK polyetheretherketone as a metal replacement in modern industry.

03 | Processing and Molding Recommendations

PEEK 3350R30 can be molded using injection molding, extrusion, and compression molding.

  ・It is recommended that the mold temperature be maintained above 160°C to ensure adequate crystallization and mechanical properties.

  ・Drying is essential; pre-drying at 120°C for three hours is typically recommended to prevent bubbles and streaks.

  ・Secondary operations such as machining, welding, spraying, or metal insert molding are possible.

For complex parts or multi-cavity molds, the thermal stability of PEEK polyetheretherketone significantly reduces processing variations and improves yield.

04 | DOMO PEEK 3350R30 Data Sheet

05 | Technological Innovation and Competitive Advantages

DOMO continuously optimizes the polymer structure and filler distribution within its PEEK material system, resulting in 3350R30 with higher strength and ductility at the same density.

Its thermal cycling stability significantly surpasses conventional reinforced grades, effectively preventing high-temperature aging and structural fatigue.

In addition, DOMO utilizes low-carbon manufacturing processes throughout its production process, ensuring this material combines performance with sustainability, making it a logical choice for future manufacturing trends.

06 | Customer Feedback and Market Performance

Comments from customers in the electronics, electrical, and automotive industries:

  ・The material offers excellent processing stability and short molding cycles.

  ・The finished product exhibits no noticeable deformation under long-term thermal stress.

  ・Compared to traditional materials such as PPS and PEI, equipment maintenance frequency is significantly reduced.

These real-world feedback demonstrates that DOMO PEEK 3350R30 has proven its reliability across multiple high-end industry chains.

07 | FAQ

Q1: What is the difference between this grade and unfilled PEEK?

A: 3350R30 is a modified and reinforced grade, offering higher stiffness and improved dimensional stability, making it suitable for structural component applications.

Q2: Is it suitable for co-molding with metal parts?

A: Yes, the material's coefficient of thermal expansion is close to that of metal, resulting in excellent adhesion.

Q3: Can it be used in cleanrooms or medical equipment environments?

A: Yes. Its chemical stability and low precipitation properties meet cleanroom requirements.

08 | Similar Recommendations

These materials complement DOMO PEEK 3350R30 in terms of performance, allowing for a customized blend based on application requirements.

09 | Juyuan: Your Global Materials Partner

As an international supplier with 24 years of experience in plastic raw material trading, Juyuan specializes in providing customers with high-end engineering plastic solutions, including PEEK polyetheretherketone.

  ・Direct supply from multiple warehouses worldwide, offering flexible delivery cycles.

  ・Brand comparisons, selection consultation, and technical data support are available.

  ・Long-term partner factories are all internationally certified, ensuring traceability and consistency.

From Material to Possibility — Juyuan is committed to making every raw material a starting point for customer innovation.

【Related Recommendations】