PLA High-Speed Marble Filament (brick red) by Sunlu — PLA H-S Mar BR for 3D printing

Sunlu PLA High-Speed Marble Filament in brick red is a PLA-based 3D printing material formulated to reproduce a stone-like, marbled appearance. The composition contains marble-imitating particles that give printed models a textured, natural look suitable for architectural mock-ups, sculptures and decorative parts. It is intended for standard FDM/FFF printers and targets users who want a marble effect combined with higher printing throughput.

Advantages

The filament supports high printing speeds while retaining good layer adhesion and surface quality, reducing common high-speed issues such as stringing and clogging. It offers tight dimensional accuracy and consistent diameter for steady material feeding and repeatable results. The marble-like finish provides a premium visual texture without additional post-processing.

Suitable for

• Architectural models and scale buildings
• Sculptures and decorative objects
• Visual prototypes and presentation models
• Large prints where faster fill speeds are desired

When it may not be suitable

This filament is PLA-based and thus has the temperature limitations common to PLA: it is not suitable for high-temperature functional parts or long-term outdoor exposure without additional protection. For applications requiring very high toughness, chemical resistance, or continuous elevated-temperature performance, alternative engineering materials should be considered.

Key specifications

• Color: Brick red
• Density: 1.25 g/cm³
• Vicat Softening Point: 54 °C
• Heat Deflection Temperature: 54.8 °C
• Melting temperature: 164 °C
• Melt flow rate: 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

Load the filament into a compatible FDM/FFF printer and set standard PLA printing parameters as a starting point. The material is designed for printing speeds from about 50 up to 600 mm/s; in practice, adjust speed according to your printer’s capabilities and part geometry—fill speeds can be increased (up to ~450 mm/s and up to ~600 mm/s for thin walls) while monitoring surface quality. Use a nozzle temperature near the material’s melting range and calibrate retraction to minimise stringing. Bed adhesion aids such as a glue stick or PEI sheet may be used if required.

What to consider before purchase

• Intended use temperature and suitability for functional parts
• Compatibility with your FDM/FFF printer and nozzle size
• Desired balance between print speed and surface finish
• Need for post-processing or protective coating for outdoor use

Usage recommendations

Start with manufacturer-recommended temperatures and perform test prints to find the optimal speed/temperature balance for your printer. Increase fill speeds gradually and check for any stringing or dimensional deviations; for best results on visible surfaces, slow down outer perimeters while keeping infill speeds high.