Antistatic & Conductive Filaments covers 5 brush materials with continuous service temperatures from 80°C to 350°C. These 5 materials are specified for where the charge goes, not for how they scrub, and they span 80°C to 350°C because the family runs from carbon-loaded synthetics to carbon fiber and fine metal wire.
What makes Antistatic & Conductive Filaments different from other material categories?
Short answer: this category groups 5 materials used as brush fill or brush components, spanning 5 material classes: conductive carbon filament, conductive synthetic fiber, functional polyester, functional polyamide filament, functional synthetic filament.
Continuous service temperature across the category runs from 80°C to 350°C.
Water absorption at 24 hours spans 0.1% to 20%, which is the figure that decides whether a brush holds contact pressure in wet service.
In brush terms: the category narrows the shortlist. It does not set the stiffness. Diameter and free trim still set contact force, and with these materials a lighter contact is usually the safer starting point.
Which filament materials are available in this category?
The 5 materials in this category, with the behavior that decides each one:
| Material | Key behavior | Best suited for | Watch out for |
|---|---|---|---|
| Anti-static Filament | Defined by the carrier polymer, diameter and trim | Static-control contact on paper, film, textile and electronics lines when the complete brush has a defined grounding path | The word anti-static alone cannot prove ESD protection, ATEX suitability, cleanroom suitability or lifetime conductivity |
| Antistatic PBT Filament | Shore D 80–90 | Industrial cleaning and custom brush configurations requiring the stated material properties | — |
| Carbon Fiber | High axial modulus at the fiber level, but a brush tuft flexible because its filaments are extremely fine and unsupported | Grounded static-removal strips and precision contact on films, optics and electronics where very fine conductive fibers are required | Brittle fiber fragments, conductive contamination and incomplete grounding can make carbon fiber unsuitable for exposed electronics or cleanliness-critical areas |
| Conductive Nylon | Grade- and additive-dependent | Grounded ESD strip, roller and detail brushes used around films, electronics and charge-sensitive components | — |
| Thunderon Conductive Fiber | Material-specific | Electronics, film, optical surfaces, printing and static-sensitive dust removal | not for abrasive cleaning |
How do I choose between Antistatic & Conductive Filaments materials?
Start from the resistance range the process requires and from whether the brush can be grounded. A dissipative fill on an isolated mount drains nothing, so the mounting is part of the material decision. The table below is derived from the published figures of the materials in this category:
| If your service condition is… | Start with | Why |
|---|---|---|
| Hot service, above 80°C continuous | Carbon Fiber or Antistatic PBT Filament | Highest continuous service temperature in this category |
| Wet, humid or washdown service | Carbon Fiber or Antistatic PBT Filament | Lowest water absorption, so contact pressure holds when soaked |
| Heavy residue, aggressive scrubbing | Antistatic PBT Filament or Conductive Nylon | Highest filament hardness for point pressure |
| Delicate or coated surfaces | Anti-static Filament or Conductive Nylon | Softest filament in this category, lowest marking risk |
| Fine bores, narrow slots and precision work | Carbon Fiber or Antistatic PBT Filament | Can be drawn to the smallest filament diameter here |
In brush terms: a fine filament of a hard material can be softer in the hand than a thick filament of a soft one. Check what the fill leaves behind: carbon fiber works at very low contact force but can shed fine conductive fragments, which is a defect in the places these brushes are usually installed.
What brush types use Antistatic & Conductive Filaments?
Short answer: 4 of the brush constructions in the catalogue are built with materials from this category.
- Custom Roller and Conveyor Brushes
- Custom Handheld Detail Brushes
- Custom Strip Seal Brushes
- Custom Tube & Pipe Bore Brushes
The construction and the service condition together decide the material. Resistance range and surface sensitivity together usually leave two materials.
How do I specify Antistatic & Conductive Filaments for my brush?
Provide these together: give the required surface resistance or decay time, the grounding arrangement, the brush type and the filament diameter and trim, along with the working temperature. Conductive and dissipative are not the same specification: one drains charge quickly and can itself be a hazard near live parts, the other bleeds it away slowly and is what most electronics work calls for.
If the process is audited to an ESD standard, state the standard: it sets the measurement method as well as the limit. It is not automatically included with every brush.