Siddament PLA-CF Carbon Fibre Filament — 1.75mm 1kg
Siddament PLA-CF Carbon Fibre Filament — 1.75mm 1kg
Siddament PLA-CF on a 1.75mm, 1kg spool. Standard PLA loaded with 15% chopped carbon fibre by weight, milled to around 0.04mm.
The carbon does not add much strength here — what it does is scatter light across the surface, hiding layer lines so the part reads as machined rather than printed. If you want parts that look finished straight off the bed, this is the material.
Specifications
| Material | PLA with 15% chopped carbon fibre |
|---|---|
| Fibre length | ~0.04mm |
| Diameter | 1.75mm |
| Spool weight | 1kg net |
| Colour | Smoky black — #0F0F0F |
| Density | 1.22 g/cm³ |
| Heat deflection temperature | 53°C |
Print settings
| Nozzle | 200–220°C |
|---|---|
| Bed | 60°C |
| Print speed | 50–200 mm/s |
| Part cooling | 50–100% |
| Nozzle diameter | 0.2–0.6mm — hardened steel required |
| Layer height | 0.12–0.3mm |
| Build surface | Tempered glass, PEI or carbon fibre board |
| Drying | 50°C for 2–4 hours if damp |
Mechanical properties
| Tensile strength | 44.8 MPa |
|---|---|
| Elongation at break | 4.1% |
| Bending strength | 64 MPa |
| Flexural modulus | 2432 MPa |
| Notched impact strength | 4.1 kJ/m² |
| Water absorption (23°C / 24h) | <0.3% |
Figures from the Siddament PLA Carbon Fiber technical data sheet.
Sidd's notes
Like the other CF materials, this isn't a pure black — it's more of a smoky black. Applications are much the same as standard PLA while withstanding around 5–10°C more. It's a filament for aesthetic prints rather than strength.
It also flows way faster than you'd expect — around 36mm³/s on a Bambu hotend, which is insane.
Carbon fibre is abrasive. Run a hardened steel nozzle or you will chew out a brass one.
Stocked in Perth
Held in stock in Bibra Lake, Western Australia and dispatched locally — no waiting on eastern-states freight.