Spectrum PC CF Carbon black 0,25kg

Spectrum PC CF 1.75mm Filament – The Strength of Polycarbonate, the Rigidity of Carbon

Spectrum PC CF is an engineering material that combines the composition of PC 275 polycarbonate with an admixture of 10% carbon fibres. The result is a filament with high mechanical properties, designed for printing parts that must withstand load, temperature, and demanding operating conditions. The addition of carbon fibres increases the material's rigidity and strength while also improving its dimensional stability and resistance to deformation.

The material is engineered for low shrinkage (low-warp technology). This allows for printing larger models with a reduced risk of warping, even without the need for a heated print chamber. Printed parts have a matte surface, suitable for functional prototypes, end-use parts, and industrial tools.

Recommendation: Due to the abrasive nature of carbon fibres, it is necessary to use a hardened steel or ruby nozzle to print this material. A standard brass nozzle would wear out very quickly. A nozzle diameter larger than 0.4 mm (e.g., 0.5 mm or 0.6 mm) is also recommended to allow the fibres to pass through.

Features for Engineering Applications

Mechanical and Thermal Resistance

This material is designed for parts that operate in demanding conditions.

• High strength and rigidity: The 10% carbon fibre content reinforces the structure and increases the elastic modulus.
• High impact resistance: It retains the toughness of the base polycarbonate for parts exposed to impact loading.
• Thermal resistance of 150 °C: The Vicat softening point is 150 °C (HDT B 140 °C), allowing for use near heat sources.
• UV resistance: The material is suitable for outdoor applications where it is exposed to sunlight.

Dimensional Stability and Printing

• Low-shrinkage technology: Reduces the risk of deformation and detachment from the build plate during printing.
• Printable without a heated chamber: Allows for use on a wider range of 3D printers.
• Resistance to moisture and chemicals: Provides reliable performance in industrial environments.

Recommended Applications

• Functional prototypes for testing in real-world conditions.
• Manufacturing tools and aids (jigs & fixtures).
• Mechanical components exposed to high loads (e.g., gears, brackets).
• Components for the automotive industry and motorsport.
• Durable housings for electronic devices.
• Sports equipment and parts for drones.

Technical and Printing Parameters

• Material: PC CF (Polycarbonate + 10% Carbon Fibres)
• Filament diameter: 1.75 mm
• HDT B (0.45 MPa): 140 °C
• Vicat softening point: 150 °C
• Recommended printing temperature: 270 - 290 °C
• Recommended bed temperature: > 80 °C

Who is Spectrum PC CF a Good Choice For?

This filament is intended for professionals, engineers, and advanced users who need to produce parts with properties that surpass standard materials like PETG or ABS. It is suitable for:

• Producing end-use parts that need to be lightweight, yet strong and rigid.
• Prototyping in the automotive and aerospace industries, where a combination of mechanical and thermal resistance is required.
• Users who want to print with polycarbonate but are concerned about its shrinkage and printing difficulty.