3D printer filament Sunlu PLA+ 2.0 (Red) — PLA+ material, spool filament for FDM printers

Sunlu PLA+ 2.0 filament in red is a 1.75 mm PLA+ spool designed for FDM/FFF 3D printers. This version offers improved flow and toughness compared with standard PLA, giving more reliable feeding, reduced risk of nozzle clogging, and prints with lower warping. It is intended for users who need a balance of ease of printing, dimensional precision and greater durability for functional or decorative parts.

Advantages

Sunlu PLA+ 2.0 combines the printability of PLA with enhanced mechanical properties similar to easy-to-print ABS variants. The material flows up to 1.5× better than standard PLA, which supports stable extrusion and smoother printing at higher speeds. Tight diameter tolerance and low warping tendency help maintain accuracy, while improved toughness increases resistance to cracks and everyday wear.

Suitable for

• Prototyping and concept models
• Decorative items and visual models
• Functional parts and fixtures that require increased toughness
• Workflows requiring faster print speeds or higher throughput

When it may not be suitable

This filament has a moderate heat resistance (Vicat and HDT around the mid-50 °C range), so it is not suitable for parts exposed to sustained high temperatures or direct contact with heat sources. For applications needing very high temperature resistance or specialized chemical resistance, consider other engineering-grade materials.

Key specifications

• Diameter: 1.75 mm (tolerance ±0.02 mm)
• Density: 1.21 g/cm³
• Vicat softening temperature: 54 °C
• Heat deflection temperature (HDT): 53.8 °C
• Melting temperature: 164 °C
• Melt flow rate: 7.8 g/10 min
• Tensile strength: 53.4 MPa
• Elongation at break: 20.3 %
• Flexural strength: 81.8 MPa
• Flexural modulus: 2740 MPa
• IZOD notched impact strength: 19.8 kJ/m²

How to use

Load the spool onto the printer for standard 1.75 mm filament and set nozzle temperature according to your printer and profile—start testing around the material melting point (around 200–220 °C is common for PLA+ on many machines, adjust as needed). Use a heated bed if available and calibrate bed leveling to reduce first-layer issues. Print speed can be increased safely thanks to improved flow properties, but tune retraction and cooling settings to avoid stringing and to maintain surface quality.

What to consider before purchase

• Check that your printer supports 1.75 mm filament and can print PLA-based materials.
• Consider the filament’s heat resistance limits for parts exposed to elevated temperatures.
• Ensure you have appropriate printing profiles or willingness to tune temperatures and speeds for best results.

Usage recommendations

For reliable results, start with conservative temperature and speed settings, then gradually increase speed up to 300 mm/s while monitoring extrusion stability and part quality. Use standard PLA bed adhesion methods and store the filament dry to preserve printing performance.