Filament Spectrum ASA Electrically Conductive 1.75mm BLACK 0.75kg

Product detailed description

Spectrum ASA Electrically Conductive is an advanced technical filament developed for professional applications where electrical conductivity and high resistance to environmental influences are essential. The filament is based on a durable ASA polymer enriched with carbon nanotubes (CNTs), which provide very low surface resistivity – around 40 Ω. This makes the filament an excellent choice for applications requiring efficient current conduction.

In addition to its electrical properties, Spectrum ASA Electrically Conductive also offers exceptional resistance to UV radiation and weather conditions, making it ideal for outdoor use. Its high rigidity, good dimensional stability, and mechanical strength make the material suitable for producing technical components that must function reliably even under demanding conditions. Prints from this filament feature a matte surface, which not only provides an aesthetic appearance but also hides layer lines, eliminating the need for post-processing.

Although Spectrum ASA Electrically Conductive does not require a heated chamber, using one can improve stability when printing larger models. Due to the presence of carbon nanotubes, the material is slightly abrasive; therefore, we recommend using a hardened steel or ruby nozzle. Spectrum ASA Electrically Conductive is a great choice for users looking for a durable, weather-resistant, and electrically conductive material for specialised technical prints.

Key features:

Very low surface resistivity (~40 Ω·m)
Electrical conductivity
High rigidity and dimensional stability
Resistance to UV radiation and weather conditions
Matte surface to reduce visible layers
Volume resistivity measurements:

To verify the conductive properties, tests were conducted using a 3D printed sample measuring 4 × 4 × 120 mm (100% infill), at 10 V and three different extrusion temperatures: 270 °C, 280 °C, and 290 °C. The volume resistivity results were as follows:

270 °C: 51 Ω·m
280 °C: 45 Ω·m
290 °C: 41 Ω·m
These measurements show that increasing the extrusion temperature positively affects the conductivity of the filament. Higher temperatures improve the dispersion of carbon nanotubes within the model structure, leading to lower volume resistivity. For the user, this means that printing components requiring maximum conductivity is best achieved at higher extrusion temperatures (up to 290 °C), provided the printer hardware supports this setting.