Filament Sunlu PLA High-Speed Marble — Sunlu PLA H-S Mar AC, gray concrete effect, PLA 1.75 mm

Sunlu PLA High-Speed Marble (PLA H-S Mar AC) is a 1.75 mm PLA filament with a concrete-gray, marble-like visual effect designed for FDM/FFF 3D printers. The material combines a textured stone appearance with the printing convenience of PLA, making it suitable for decorative parts, architectural models, sculptures and prototypes that require an aesthetic, stone-like surface while maintaining reliable extrusion and layer adhesion.

Advantages

The filament offers a realistic marble/stone texture and color while supporting high-speed printing. Its formulation provides stable feeding, low shrinkage and consistent diameter for dimensional accuracy. Designed to minimize common high-speed printing issues such as stringing and nozzle clogging, it delivers repeatable results across a range of print speeds and machines.

Suitable for

• Architectural scale models and mock-ups
• Sculptures and decorative objects with a stone-like finish
• Prototypes and display pieces requiring aesthetic surface texture
• High-throughput printing where appearance and speed are both important

When it may not be suitable

This PLA is not intended for high-temperature functional parts or applications that require heat resistance above its Vicat/deflection temperatures. For mechanical components exposed to sustained loads at elevated temperatures, a technical polymer with higher heat resistance would be more appropriate. Also, if an exact color match to real concrete is critical, variations in printing settings and post-processing may affect the final tone.

Key specifications

• Material: PLA (polylactic acid)
• Nominal diameter: 1.75 mm
• Visual effect: marble / concrete gray texture
• Density: 1.25 g/cm³
• Vicat softening temperature: 54 °C
• Heat deflection temperature: 54.8 °C
• Melting temperature: 164 °C
• Melt flow index: 10.7 g/10 min
• Tensile strength: 41 MPa
• Elongation at break: 80%
• Flexural strength: 70 MPa
• Flexural modulus: 3400 MPa
• Impact resistance (X–Y): 11 kJ/m²

How to use

Use standard PLA print settings on your FDM/FFF printer and set the filament diameter to 1.75 mm in the slicer. Recommended printing temperatures are around the material’s melting range; adjust nozzle and bed temperatures and print speed according to your printer and model geometry. The filament supports a wide speed range — typical extrusion can be performed from around 50 mm/s up to several hundred mm/s for infill and simple geometries — but fine details may require slower settings. Ensure good part cooling and proper retraction settings to reduce stringing when printing at higher speeds.

What to consider before purchase

• Confirm your printer supports 1.75 mm PLA filaments and check nozzle compatibility
• Consider intended use temperature — not suitable for applications above ~54–55 °C
• High-speed printing requires tuned retraction and cooling to avoid artifacts
• Printed color and marble effect can vary with layer height, extrusion settings and post-processing

Usage recommendations

For best results, start with standard PLA temperature settings, calibrate extrusion and retraction, use moderate to strong part cooling for visible texture, and test print at your target speed and layer height to balance surface appearance and print time.