PEEK or PolyEther Ether Ketone is one of the best performing thermoplastics in the world. Thanks to it’s amazing combination of key properties, experts happily apply PEEK in a variety of industries. PEEK has a high temperature resistance, and it offers a great mechanical strength. The additional chemical resistance results in a fantastic product that is highly useable in many settings and industries.

What is PEEK?

PEEK, also know as polyether ether ketone, is a colourless organic thermoplastic polymer. PEEK polymers are obtained by step-growth polymerization by the dialkylation of bisphenolate salts.

PEEK is a semi-crystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures. PEEK has a glass transition temperature at around 143°C and melts around 343°C. PEEK brings high mechanical strength, stiffness, and creep resistance over a wide temperature range. It is highly resistant to thermal degradation and attacks by both organic and aqueous environments.

Key properties of PEEK

  • Very good mechanical and chemical resistance
  • Excellent strength, rigidity and toughness at elevated temperatures
  • Properties can be improved by adding additives (graphite, glass, carbon,…)
  • Low permeability
  • Low coefficient of friction
  • Excellent electrical properties
  • FDA approved
  • Excellent resistance against gamma radiation
  • Very good resistance in repeated sterilisation processes

Popular applications for PEEK

Automotive industry

PEEK is the ideal material to use in automotive solutions. Car constructors often select this material because of its light weight, low noise generation, and functional options. We see PEEK applications in various car applications, like piston units, transmission, brakes, air conditioning, …

Aerospace

In Aerospace, weight and durability are key. PEEK can offer these properties, and that’s why this thermoplastic is a popular material to use in aircrafts. The high resistance to temperature and weather conditions, allow aircraft designers to apply PEEK into several parts of airplanes, like engine parts, exterior components, and interior applications.

Medical applications and healthcare

PEEK is the perfect replacement for a variety of aluminium parts, used in healthcare. The material withstands high temperatures and can be sterilized at high temperatures. That’s why PEEK is the ideal material to use for healthcare instruments like endoscopes.

Other use cases for PEEK applications

  • Any demanding applications
  • Bearings, piston parts, pumps, HPLC columns, compressor plate valves and cable insulation
  • High-vacuum applications
  • Chemical process industries

Key properties
  • Very good mechanical and chemical resistance
  • Excellent strength, rigidity and toughness at elevated temperatures
  • Properties can be approved by adding additives (graphite, glass, carbon,…)
  • Low permeability
  • Low coefficient of friction
  • Excellend electrical properties
Applications
  • Demanding applications
  • Bearings, piston parts, pumps, HPLC columns, compressor plate valves and cable insulation
  • High-vacuum applications
  • Used in medical implants
  • Extensively used in the aerospace, automotive and chemical process industries

DATASHEET

Property
UNIT
NORM
Value
Mechanical properties
Hardness Shore D
Sh. D
ISO 868
84.5
Ball pressure hardness
N/mm²
DIN 53456
230
Tensile strength (23°C)
N/mm²
DIN 53455
110
Elongation at break (23°C)
%
DIN 53455
20
Tensile modulus (23°C)
N/mm²
DIN 53457
4200
Coefficient of friction v-steel - Dynamic
--
0.35
SHOW MORE