Abrasive Filaments covers 6 brush materials, all rated for continuous service at 120°C. All 6 grades here are rated for continuous service at 120°C, so temperature does not separate them — grit type, grit size and filament diameter do.
What makes Abrasive Filaments different from other material categories?
Short answer: this category groups 6 materials used as brush fill or brush components, spanning 4 material classes: abrasive composite filament, abrasive-filled polyamide filament, abrasive-filled polymer filament, bonded abrasive web.
Continuous service temperature is 120°C across every material in this category, so it is not what separates them — the abrasive grain and the grit size are.
Water absorption at 24 hours spans 1% to 2%, 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. Filament diameter and free trim then set how hard it cuts, and they are chosen after the grit.
Which filament materials are available in this category?
The 6 materials in this category, with the behavior that decides each one:
| Material | Key behavior | Best suited for | Watch out for |
|---|---|---|---|
| Abrasive Nylon | Abrasive filament | Edge blending, light deburring, oxide removal and surface preparation on metal, wood, plastic and machined bores | — |
| Aluminum Oxide Abrasive Nylon | Abrasive filament | Controlled finishing, cleaning and deburring where a less aggressive cut than silicon carbide is preferred | — |
| Ceramic Abrasive Fiber | Abrasive filament | High-cut deburring and surface conditioning on hard metals, ceramic parts and precision manufactured edges | Not for delicate coatings, soft plastics or finished paint unless the removal target and finish are process-proven |
| Diamond Abrasive Filament | Stiffness is controlled by the polymer and filament diameter | Micro-deburring, edge radiusing and precision finishing of carbide, ceramic, glass and other hard materials | not appropriate for general cleaning, soft metals, coated surfaces or uncontrolled manual use |
| Non-woven Abrasive Fiber | Soft-conforming to firm according to density and grit | Surface blending, oxidation removal, satin finishing and light deburring | Not suitable for dimensional stock removal or narrow deep bores without a supported carrier |
| Silicon Carbide Abrasive Nylon | Aggressive abrasive filament | Aggressive deburring, bore finishing, scale removal and edge radiusing on harder metals and engineered parts | — |
How do I choose between Abrasive Filaments materials?
Start from the finish you must leave, not the burr you must remove. Grit size sets the scratch pattern the part is left with; burr size is handled by pressure and passes. 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 | Silicon Carbide Abrasive Nylon or Non-woven Abrasive Fiber | Highest continuous service temperature in this category |
| Wet, humid or washdown service | Abrasive Nylon or Non-woven Abrasive Fiber | Lowest water absorption, so contact pressure holds when soaked |
| Heavy residue, aggressive scrubbing | Diamond Abrasive Filament or Ceramic Abrasive Fiber | Highest filament hardness for point pressure |
| Delicate or coated surfaces | Aluminum Oxide Abrasive Nylon or Silicon Carbide Abrasive Nylon | Softest filament in this category, lowest marking risk |
| Fine bores, narrow slots and precision work | Non-woven Abrasive Fiber or Aluminum Oxide Abrasive Nylon | 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. Silicon carbide and aluminum oxide are not interchangeable: silicon carbide is harder and sharper and suits non-ferrous and non-metallic work, aluminum oxide is tougher and holds up better on steel.
What brush types use Abrasive Filaments?
Short answer: 7 of the brush constructions in the catalogue are built with materials from this category.
- Custom Wheel Brushes
- Custom Floor Scrubber Sweeper Brushes
- Custom Roller and Conveyor Brushes
- Custom Tube & Pipe Bore Brushes
- Custom Handheld Detail Brushes
- Custom Strip Seal Brushes
- Custom Cup Brushes
The construction and the service condition together decide the material. Part material and target finish together usually leave two grit choices.
How do I specify Abrasive Filaments for my brush?
Provide these together: give the grit type and size, the filament diameter, the trim length and the target finish, along with the part material and how the brush is presented to it. The grit is carried through the filament rather than coated on it, so the brush keeps cutting as it wears; what changes with wear is stiffness, because a shorter filament is a stiffer one.
Abrasive filament also removes a small, measurable amount from the face it touches, so where a dimension is critical the deburring pass belongs inside the process capability. It is not automatically included with every brush.