PEEK (Polyether Ether - Keystone)

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PEEK (polyetheretherketone) is a high strength alternative to fluoropolymers with an upper continuous-use temperature of 250°C (480°F). PEEK exhibits excellent mechanical and thermal properties, chemical inertness, creep resistance at high temperatures, low flammability, hydrolysis resistance, and radiation resistance. These properties make PEEK a preferred product in the aircraft, automotive, semiconductor, and chemical processing industries. PEEK is used for wear and load bearing applications, such as, valve seats, pump gears, and compressor valve plates.
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  • A high performance engineered thermoplastic. Used continuously to 480 F (250 C) in hot water or steam without permanent loss in physical properties.
  • Excellent chemical resistance
  • Low moisture absorption
  • Good wear and abrasion resistance
  • FDA approval (unfilled)

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Phone: 1-908-852-3125     Email: rrom@sspseals.com

Data Sheet for PEEK (Polyether Ether - Keystone)

Mechanical Property ASTM Method Unit Peek Grade
450G 450GL30 450CA30
Melt Flow Rate D-3307 g/10 min 3-3.5 1.2-1.5 1.2-1.5 0.48-0.56
Specific Gravity D-792 1.32 1.49 1.44
Water Absorption, 24 hr. D-570 % 0.5 0.11 0.06
Tensile Strength, 23°C D-638 psi 14,500 24,650 32,770
Elongation, 23°C D-638 % 50 2.2 1.3
Compressive Strength, 23°C at 5% strain D-695 psi 17,110 31,175 34,800
Impact Strength, 23°C, Notched Izod D-256 ft-lb/in 1.57 1.8 1.59
Flexural Modulus, 23°C D-790 psi 594,500 1,450,000 2,900,000
Rockwell Hardness, R scale D-785 R 126 124 124
Coefficient of Friction D-1894 -- -- --
Deformation Under Load, 23°C, 100 psi, 10 hr. D-621 % -- -- --
Thermal Property
Melting Point DSC °C 340 340 340
Deflection Temperature (264 psi) D-648 °C 160 315 276
Oxygen Index D-2863 % 24 -- --
Max. Service Temperature °C 250 250 250
Thermal Conductivity C-177 Btu-in/hr-ft2-F 1.75 0.43 0.24
Flammability UL 94 V-O V-O V-O
Electrical Property
Surface Resistivity D-257 ohm-sq -- -- --
Volume Resistivity D-257 ohm-cm 4.9 x 1016 -- --
Dielectric Strength (0.05 mil film) D-149 KV/cm 190 -- --
Dielectric Constant, 21°C, 50 Hz-10 kHz D-150 3.2-3.3 -- --
Dissipation Factor, 21°C, 1 MHz D-150 0.003 -- --
Arc Resistance D-495 sec -- -- --

PEEK is a high temperature, chemically inert material used in various applications and industries. It is extremely strong and rigid allowing it to be used in demanding conditions. Due to all these properties, PEEK seals are most often used in oil and gas applications. They are also used in other applications that are constantly in touch with chemicals, experience high temperatures, and undergo physical stress.
This material is FDA Approved (FDA CFR 21-177.2600 Compliant)
FDA Approved Seals & Gaskets

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NOW AVAILABLE FDA COMPLIANT POLYURETHANE

Fda Cfr 21-177.2600 Color: Red Clear Upon Request -13 Deg F To 240 Degree F Hardness 95 & 1-2 Shore A Resistant To: Oil, Petrol, Hot Water, Hot Air, Synthethic And Natives Esters

SSP Manufacturing, Inc

83 Spring Lane, Hackettstown, NJ 07840
+1-888-238-SEAL
1-908-852-3125
1-908-852-3425
rrom@sspseals.com

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