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High-Performance Materials

PEEK SHEETS

PEEK Sheets (Polyether Ether Ketone Sheets) are high-performance thermoplastic sheets and composed of PEEK, a semi-crystalline engineering polymer with exceptional mechanical, thermal, and chemical qualities. PEEK sheets, which are produced by compression molding or extrusion, have remarkable strength, high heat resistance, chemical inertness, and outstanding wear resistance, making them the perfect material for demanding applications in a variety of industries, including the automotive, aerospace, medical, and industrial sectors.

PEEK sheets are among the most sought-after high-performance thermoplastic materials because they retain their exceptional performance and structural integrity in harsh conditions.

What are the key features of PEEK sheets?

-Excellent Hydrolysis Resistance: Suitable for autoclave sterilization in medical applications, it can tolerate high-pressure steam and hot water without deteriorating.

-High-Temperature Resistance: It can withstand continuous service temperatures of up to 260°C (500°F) and short-term exposure temperatures of up to 300°C (572°F).

-Outstanding Mechanical Strength: Provides excellent dimensional stability, stiffness, and tensile strength.

-Lightweight Substitute for Metals: Offers a superior strength-to-weight ratio and lowers total component weight in the automotive and aerospace sectors.

-Outstanding Chemical Resistance: Capable of withstanding a variety of chemicals, acids, and solvents, such as organic solvents, strong bases, and hydrocarbons.

-Excellent resistance to wear and friction—perfect for tribological applications (low wear, low friction).

-High Radiation Resistance: It is perfect for medical and aeronautical applications due to its remarkable resistance to gamma rays, X-rays, and UV radiation.

-Excellent Electrical Insulation Properties: Works effectively in applications requiring high-voltage insulation.

-FDA-approved and biocompatible grades are appropriate for medical implants and food contact applications.

-Flame Retardant & Low Smoke Emission: UL94 V-0 rated, naturally self-extinguishing without the need for further flame retardant chemicals.

How many types of PEEK sheets are there?

1、 PEEK Sheets Filled with PTFE 

Used in tribological (friction and wear) applications, like seals and sliding components; blended with PTFE (Polytetrafluoroethylene) to enhance lubrication and wear resistance. 

2、 PEEK sheets that are virgin (unfilled) 

 Made entirely of PEEK resin, without of any additives or fillers. 

 Outstanding mechanical, thermal, and chemical property balance. 

 Appropriate for general engineering, food, and medical applications. 

3、 ESD-Safe and Conductive PEEK Sheets 

Appropriate for the electronics, semiconductor, and aerospace sectors; formulated with carbon or other conductive fillers for electrical conductivity and electrostatic discharge (ESD) protection.

4、 PEEK sheets filled with glass 

 Increases strength, stiffness, and dimensional stability with 30% glass fiber reinforcement. 

 Stronger and more resilient to deformation than virgin PEEK, but less flexible. 

 Frequently employed in load-bearing and structural applications. 

5、 PEEK Sheets Filled with Carbon 

 Perfect for high-load, high-friction applications including bearings, bushings, and sliding components; reinforced with carbon fibers (usually 30%), offering increased stiffness, wear resistance, and decreased coefficient of friction.

Technical Specifications:

1、Density：~1.30 – 1.32 g/cm³（lightweight in contrast to metals.）

2、Hardness：~85 Shore D（high hardness of the surface.）. 

3、Thermal Conductivity：~0.25 W/m·K（good qualities for insulation）.

4、Tensile Strength：~90 – 100 MPa（Strong mechanical properties）.

5、Elongation at Break：~20 – 50%（strong resilience and adaptability.）

6、Flexural Strength：~150 MPa（Resistant to pressures that cause bending and flexing）

7、Glass Transition Temp：~143°C （Change to a softer stage）

8、Continuous Use Temp.：~260°C (500°F)（Operates in extreme temperatures）

9、Flammability Rating：UL94 V-0 (Low smoke emissions and self-extinguishing）

10、Radiation Resistance：Excellent（able to tolerate high gamma radiation dosages）

What are the advantages and benefits of PEEK sheets?

1、 Sterilization and biocompatibility: Applied in the pharmaceutical, food, and medical sectors.

2、 High Temperature Stability: Can function in extremely hot environments.

3、 Weight Reduction: Maintains superior mechanical qualities while being lighter than metals.

4、 Outstanding Chemical and Hydrolysis Resistance: Can withstand high-pressure steam and harsh chemicals.

5、 Superior Electrical Insulation: The material of choice for electrical applications.

6、They are perfect for sanitary applications because of their smooth, non-porous surface, which is easy to clean, stain-resistant, and bacteria-free.

8、 Outstanding Wear and Friction Properties: Fit for mechanical parts that move.

What applications are PEEK sheets used for?

1. Electronics and semiconductors: connectors, circuit board supports, and insulating parts. 

2. Aerospace and defense: structural reinforcements, engine parts, and aircraft components. 

3. Automotive and motorsport: lightweight gears, seals, bearings, and engine parts. 

4. Medical and healthcare: sterilization trays, orthopedic implants, and surgical instruments. 

5. Industrial equipment includes rollers, valves, gears, and high-wear components. 

6. Food processing and packaging: PEEK sheets have FDA approval for sanitary uses. 

How to store and handle PEEK sheets?

1. Packaging: To reduce moisture absorption, vacuum-seal or use desiccant packs.

2. Conditions: Keep in a dry, cool location (15–25°C) with less than 50% humidity.

3.  Stacking: To reduce warping, stack flat on pallets rather than vertically.

4. UV Protection: To stop surface deterioration, shield yourself from direct sunshine.

5. Shelf Life: Indefinite with no chemical deterioration if stored correctly.

Frequently Asked Questions

Question 1: What distinguishes PEEK from other types of plastic?

A: In comparison to common technical plastics like nylon, ABS, or polycarbonate, PEEK is more durable due to its better mechanical strength, excellent heat resistance, and outstanding chemical resistance.

Question 2: Is moisture absorbed by PEEK?

A: Minimal (0.1–0.5% for unfilled grades), but prior to high-precision machining, pre-dry at 150°C for three to four hours.

Question 3: Can PEEK sheets be used in place of metals?

A： Yes, in response. Because of their strength-to-weight ratio, corrosion resistance, and machinability, PEEK sheets are frequently utilized as metal substitutes in industrial, automotive, and aerospace applications.

Question 4: What distinguishes filled PEEK from virgin PEEK?

A: While filled grades (glass, carbon, PTFE, etc.) improve particular qualities like strength, wear resistance, or conductivity, virgin PEEK has a balanced set of attributes.

Question 5: Is it possible to sterilize PEEK?

A: Indeed, PEEK is extremely resistant to sterilizing techniques such as ethylene oxide sterilization, gamma radiation, and autoclaving.

Question 6: What is the difference between PEEK and PTFE (Teflon)?

A: In response, PEEK has a reduced chemical resistance to strong acids but a stronger strength, wear resistance, and thermal resistance.