PEEK - Polyetheretherketone

KetaSpire® PEEK

Product description

KetaSpire® PEEK is a family of polyether ether ketones for highly demanding applications. These high-performance plastics provide an outstanding combination of fatigue resistance and chemical resistance.

PEEK offers a level of chemical resistance comparable to that of PPS (polyphenylene sulfide). However, KetaSpire® can be used at higher temperatures and retains its excellent mechanical properties at sustained temperatures of up to 240°C (464°F). This allows the materials to replace metal even in demanding end application environments.

In addition to its exceptional chemical resistance to organic substances, acids and bases, KetaSpire® offers very good wear and abrasion resistance, excellent fatigue resistance, outstanding dimensional stability and outstanding hydrolysis resistance in boiling water and superheated steam. The materials also function as an excellent dielectric with low loss at high temperatures and frequencies.

KetaSpire® is easy to process and has a high degree of purity. The wide range of performance options also includes glass and carbon fibre-reinforced grades and special grades.

The specified properties make it suitable for applications in many areas. Potential areas of application include additive manufacturing, aerospace, automotive construction, healthcare, oil and gas, and semiconductors.

PEEK (Property/Grade) KetaSpire® KT-820 NT KetaSpire® KT-820 GF30 BG20 KetaSpire® KT-820 CF30
Description PEEK low melt flow PEEK low melt flow 30%GF PEEK low melt flow 30%CF
MFR (400°C/2,16kg) (ASTM D1238) 3.0 g/10 min 0.7 g/10 min 1.1 g/10 min
Density (ASTM D792) 1.30 g/cm³ 1.53 g/cm³ 1.41 g/cm³
Tensile Stress at Yield (ISO 527-2/1A/50) 96 MPa 165 MPa 201 MPa
Tensile Elongation at Break (ASTM D638) 78% 3.1% 2%
Flexural Strength (ISO 178) 121 MPa 246 MPa 311 MPa
Flexural Modulus (ISO 178) 3.700 MPa 10.700 MPa 20.500 MPa
Tensile Modulus (ASTM D638) 3.500 MPa 10.500 MPa 19.700 MPa
Izod Impact, Notched (ASTM D256) 91 J/m 110 J/m 69 J/m
Izod Impact, Unnotched (ASTM D4812) No break 960 J/m 750 J/m
HDT u.L. (ASTM D648, 1.8 MPa) 157 °C 315 °C 315 °C
RTI Elec.(UL, 3 mm) 260 °C 240 °C
RTI Mech. w/o Imp.(UL, 3 mm) 260 °C 260 °C 240 °C
RTI Mech. w/ Imp.(UL, 3 mm) 180 °C 240 °C 220 °C




KetaSpire® PEEK

Country availability

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Olga Baburina

Contact person

Olga Baburina

Head of Sales Germany

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