PLA+ 2.0 Filament Gray — Sunlu 3D Printing Filament, PLA+ Material, Compatible with FDM Printers

Sunlu PLA+ 2.0 Filament in gray is a PLA+ thermoplastic spool formulated for FDM 3D printing. The material combines improved toughness and flowability versus standard PLA to deliver more reliable feeding, reduced nozzle clogs, and smoother printing at higher speeds. With a 1.75 mm diameter and tight tolerance, it supports consistent extrusion and dimensional accuracy for prototypes, functional parts, and detailed models.

Advantages

Sunlu PLA+ 2.0 provides greater durability and crack resistance compared with regular PLA while retaining PLA’s ease of use. The filament offers up to 1.5× improved flowability for steadier material feed and supports printing speeds up to 300 mm/s. Low warping tendency and refined printing parameters contribute to stable, high-quality results across a wide range of applications.

Suitable for

• Rapid prototyping and concept models
• Functional parts and mechanical components
• Hobbyist and educational projects
• Small-scale production runs and workshop use

When it may not be suitable

Sunlu PLA+ 2.0 has a moderate heat resistance (Vicat ~54 °C, HDT ~53.8 °C), so it is not ideal for parts exposed to sustained high temperatures or direct contact with hot liquids. For applications requiring very high temperature resistance or significant chemical resistance, other thermoplastics such as ABS, PETG, or engineering-grade materials may be more appropriate.

Key specifications

• Material type: PLA+ (enhanced polylactic acid)
• Color: Gray
• Diameter: 1.75 mm (±0.02 mm tolerance)
• 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
• Impact strength (IZOD, notched): 19.8 kJ/m²

How to use

Load the 1.75 mm filament into any compatible FDM 3D printer and set typical PLA+ print temperatures near the material’s melting range, adjusting nozzle and bed temperatures according to your printer and model geometry. Use standard PLA print settings as a starting point, then refine flow rate, print speed (up to 300 mm/s supported), and cooling to balance surface quality and strength. Ensure filament is kept dry; use a filament dryer or dry storage if ambient humidity is high.

What to consider before purchase

• Confirm your printer accepts 1.75 mm filament and can achieve recommended print temperatures.
• Consider the product’s heat resistance limits (Vicat/HDT) relative to the intended use environment.
• Assess whether higher-speed printing is required and if your printer’s mechanics can maintain quality at increased speeds.
• Plan for dry storage in humid climates to preserve filament performance.

Usage recommendations

For balanced results between speed and surface finish, start with standard PLA print profiles, enable part cooling, and gradually increase speed while monitoring extrusion consistency. For functional parts, prioritize slightly lower speeds and higher infill or wall thickness to maximize strength.