Surperhard Carbon Fiber Filament 1.75mm - High Strength PC

Our review of the Surperhard Carbon Fiber Filament finds it best suited to makers and engineers who need a rigid, high-strength filament for structural prints. The single biggest reason to buy is its composite construction: chopped carbon fiber and glass-fiber filled polycarbonate that delivers exceptional stiffness and heat tolerance for engineering-grade parts. Reviewers and users report strong layer adhesion and warp resistance when printed at the recommended temperatures, making this filament a practical choice for demanding functional prototypes and fixtures.

Key Features

• High strength composite: Chopped carbon fiber mixed with glass-fiber filled polycarbonate provides a high strength-to-weight ratio and very rigid final parts.
• Engineering-ready performance: The filament is formulated for structural components that require stiffness and high temperature tolerance during use.
• Dimensional accuracy: Factory control holds the 1.75mm diameter to tight tolerances (+/- 0.03mm) for consistent extrusion and predictable prints.
• Drying and storage guidance: Spools are thoroughly dried before packaging and the manufacturer recommends sealed storage or re-drying to avoid moisture-related issues.
• Low odor formulation: The material is described as not emitting strong smells during printing, useful in shared or small workshop environments.

Who It's For

This filament is geared toward hobbyists moving into professional work, makers building jigs, fixtures, and prototype enclosures, and small shops that need a rigid, heat-resistant material without switching to exotic processes. Its stiffness and dimensional stability make it useful for parts that must resist deformation under load.

Users seeking very flexible materials, food-safe filaments, or a precise trade-standard polycarbonate replacement should be cautious: some users note the material behaves differently than pure polycarbonate, so labs requiring certified PC may need alternative validated filaments.

Pros & Cons

Pros

• High rigidity and strength suitable for engineering parts and stiff prototypes.
• Good dimensional stability and layer adhesion reduce warping on larger prints.
• Consistent diameter tolerance and pre-dried spools improve out-of-box printability.

Cons

• Not a perfect substitute for certified polycarbonate in every application; some users report material differences.
• Requires careful moisture control and re-drying for consistent results, which adds prep time.

Specifications

Our Verdict

The Surperhard Carbon Fiber Filament is a strong value for users who need stiff, heat-tolerant parts and who can manage filament drying. Its composite construction, dimensional accuracy, and low odor printing make it a practical choice for engineering prototypes and functional parts, though those requiring certified pure polycarbonate properties should validate performance first.

Frequently Asked Questions

Does this filament require drying before use?
Yes. Although spools are pre-dried, polycarbonate-based composites are moisture sensitive; store sealed or dry 4-6 hours at 65C before printing.

What print temperatures work best?
The recommended nozzle temperature range is 240-260C with a bed at 80-100C for good adhesion and layer bonding.

Is it compatible with common 1.75mm printers?
Yes. The filament is compatible with most common 1.75mm specification printers such as Ultimaker, Zortrax, Lulzbot, BCN3D, FlashForge, and similar models.