Material
Diamond Abrasive Filament
Abrasive-filled polymer filament
Diamond abrasive filament carries diamond particles in a polymer filament, for cutting the hardest materials: carbide, ceramic, glass and stone. It is used for precision deburring, edge radiusing and polishing where nothing else cuts. It is expensive and aggressive, and has no place in general cleaning.
Datasheet values
- Abrasive grit
- 120–3,000 grit diamond
- Filament diameter
- 0.20–1.50 mm
- Mohs hardness
- 10
What is diamond abrasive filament?
A polymer monofilament, usually nylon, with diamond grit, Mohs 10, mixed through it. Filament runs from about 0.20 mm to 1.5 mm, with grit from about 120 to 3,000. As the filament wears, new diamond points are exposed.
Where is it used?
In our range: diamond disc brushes, horseshoe composite brushes for stone polishing lines, snail lock type brushes and ceramic glaze line disc brushes. They work on carbide, hard ceramic, glass, granite and engineered stone.
How do you choose the grit?
Coarse diamond grits level and remove marks; fine grits, up to 3,000, polish. On stone lines, the brushes run in sets from coarse to fine, and each stage removes the scratches of the one before. For deburring hard parts, a medium grit with a short trim gives a precise edge.
Where does diamond fall short?
Cost, and it is aggressive. It is not for general cleaning, soft metals, coated surfaces, or uncontrolled hand use. The polymer carrier limits heat to about 90–120°C, so it needs controlled speed and often water.
What should you tell us?
The material and its hardness, the finish or edge you need, the machine, head or spindle fitting, and the grit sequence if you have one.
Questions buyers ask about Diamond Abrasive Filament
When is a diamond abrasive brush needed?
For materials too hard for silicon carbide: carbide, hard ceramic, glass, granite and engineered stone. For softer materials it costs far more than it needs to.
What grits are used on diamond brushes?
From about 120 for leveling and mark removal to about 3,000 for polishing, usually in a set sequence on stone lines.
Can diamond filament run hot?
The diamond can, but the polymer carrier is limited to about 90–120°C. Use controlled speed and water where the process allows.
Where these figures come from
| Property | Published value | Source |
|---|---|---|
| Limitations | High cost and aggressive action; not appropriate for general cleaning, soft metals, coated surfaces or uncontrolled manual use. | Perlon Retrieved 2026-07-20 |
| Temperature resistance | 90–120°C for the polymer carrier. | Perlon Retrieved 2026-07-20 |
| Material definition | Diamond abrasive filament is a polymer monofilament containing diamond abrasive particles that expose cutting points as the filament wears. | Perlon Retrieved 2026-07-20 |
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Discuss This Material
Share what the brush works on, the temperature and chemicals it meets, the form you need — strip, disc, roller or hand brush — the quantity and a drawing or photo.
We reply to every request within 24 hours, with a quotation or with the questions we need answered first. If the brush can be made on our existing tooling, we make the sample directly. If it needs new tooling, we quote a sample fee and a tooling fee, and the sample fee is credited against the bulk order. Need an NDA first? We sign yours before you send drawings, and the files you send are never shown to other customers.
- MOQ500 pcs for small hand-held brushes, 100 pcs for medium and large ones
- SampleTypically 3–7 days
- ProductionFrom 7 days after sample approval, by size and quantity
- Payment30% deposit and 70% before shipment above US$10,000; smaller orders on agreed terms
“We need a brush to remove wet residue from a stainless steel conveyor, about 800mm wide. The current brush wears quickly. We can send photos.”
“We sell drinkware and need a cleaning brush to include with the product. Quantity around 5,000 pieces.”