PEEK material itself is highly insulating, with a volume resistivity as high as 1016. After glass fiber reinforcement, it remains insulating. However, carbon fiber reinforced PEEK material is electrically conductive. Only PEEK materials of the antistatic grade that have undergone resistance regulation possess electrostatic dissipation properties.
Pure PEEK is inherently a high-performance insulator, featuring a volume resistivity as high as 1016 Ω·cm. This exceptional electrical insulation capability allows the material to maintain stable dielectric performance even under continuous high-temperature operating conditions up to 260°C.
Because of its extremely high resistivity, pure PEEK does not dissipate static electricity; it simply blocks electrical flow. Therefore, pure PEEK is not ESD-safe—it is fully and permanently insulating.
Glass fiber reinforced PEEK retains the full insulating nature of the base polymer even after the addition of glass fibers. Since glass fibers themselves are non-conductive, the composite maintains a high volume resistivity that is virtually identical to unfilled PEEK.
This means PEEK-GF Material is also not ESD-safe. It remains a reliable choice for applications requiring both enhanced rigidity and absolute electrical insulation, but it cannot be used in environments where electrostatic dissipation is required.
Carbon fiber reinforced PEEK, by contrast, becomes electrically conductive due to the incorporation of carbon fibers. During melt processing, the carbon fibers form a continuous conductive network within the PEEK matrix, significantly lowering the volume resistivity to the range of 104–106 Ω·cm.
While this conductivity prevents static charge accumulation, it does not make the material ESD-safe. In fact, standard PEEK-CF Material is too conductive to qualify as electrostatic dissipative; it is classified as a conductor, which can permit instantaneous charge release and potentially cause damage in sensitive electronic environments.
Antistatic-grade PEEK is a specially engineered variant designed specifically to answer the need for ESD safety. Only through precise resistance regulation—such as the addition of specifically treated carbon fillers or carefully balanced formulations—can PEEK materials achieve a surface resistivity within the dissipative range of 106–109 Ω. This places the material firmly in the ESD-safe zone, where electrostatic charges are allowed to bleed away slowly and safely without generating a damaging spark.PRES provide 3 main kind ESD PEEK material,including ESD PEEK pellets,&ESD PEEK sheet and ESD PEEK rods.
