In electronics and the production of sensitive components, electrostatic discharge (ESD) can irreversibly damage circuits, chips and sensors. ESD-safe and conductive filaments make it possible to 3D print containers, holders, jigs and tools that protect components from discharges, opening up applications impossible with standard filaments.
ESD-safe filaments: what they are
ESD-safe (Electrostatic Discharge Safe) filaments are materials filled with conductive additives (typically carbon nanotubes or carbon black) that give a controlled surface resistivity of between 10³ and 10⁹ ohms. This range allows electrostatic charges to dissipate gradually, without creating sudden discharges or accumulating dangerous charges.
Base materials available
ESD-safe filaments are available in different polymer matrices: PLA ESD for low-temperature and prototyping applications, PETG ESD for good mechanical and chemical resistance, ABS ESD for thermal and mechanical resistance, and PA (Nylon) ESD and PC ESD for maximum performance in industrial environments. At DHM-online you will find ESD-safe filaments from specialised manufacturers such as 3DXTech and Formfutura.
Typical applications
ESD-safe filaments are used in the production of trays and containers for electronic components, holders and jigs for SMD assembly lines, enclosures for sensitive measuring instruments, tools for handling PCBs and chips, containers for transporting and storing sensitive components, and fixtures for electronic tests.
Conductive filaments: one step further
Conductive filaments have an even lower resistivity (below 10³ ohms), which is sufficient to conduct current at low intensity. They do not replace printed circuits, but open up possibilities such as basic 3D printed circuits for prototypes, capacitive and touch sensors, EMI/RFI shielding for enclosures, and low-power heaters.
Printing tips
ESD-safe and conductive filaments contain abrasive particles: always use hardened steel nozzles. Printing temperatures are generally 5-10 °C higher than the unfilled base material. Retraction must be carefully calibrated to avoid clogging. The cooling fan should be reduced compared to the base material. Dry the filament before printing, especially for PA and PC bases.
ESD-safe filaments at DHM-online
At DHM-online you will find ESD-safe and conductive filaments from leading brands such as 3DXTech and Formfutura. In the filament section you can filter by special properties to find the right material for your application.
