Additive Manufacturing with Stratasys ESD PEKK Material

Many components in the space, electronics and other industries require surrounding materials to be electrostatic discharge (ESD) safe to prevent damage from static discharge. Stratasys has developed an industry-tailored PEKK material to combine ESD properties and chemical resistance with suitable mechanical and thermal properties.

PEKK Material Capability

Many advanced electronics applications rely on parts that dissipate electrostatic charge buildup. Historically, engineers and material scientists have used various approaches to deal with this buildup of electric potential, including controlling the exit path of the charge or using a material that naturally dissipates the charge buildup.

Avionics box made from ESD PEKK.

Avionics box made from ESD PEKK.

Commercially available neat thermoplastic resins are normally considered electrically insulating, and are therefore not typically used in applications that are susceptible to electrostatic induction. Additive manufactured components, replacing traditionally machined or metallic versions, offer reduced weight, part cost production and increased design freedom, justifying the cost of change despite not meeting dissipative properties. Under this scenario, several post-processing methods can be used to achieve ESD properties:

  1. Painting or coating to meet resistance requirements
  2. Covering with a conductive tape
  3. Wrapping with carbon-filled or aluminum-coated films

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