Esun PLA+ 1.75mm Blue 1kg Refill Filament

PLA+ filament in blue, engineered for high-strength 3D printing with a 1.75 mm diameter and 1 kg net weight. This spool-less refill delivers exceptional layer adhesion and impact resistance, making it ideal for functional prototypes and durable parts. The vibrant blue colour remains consistent across prints, while the low-odour formulation ensures a comfortable printing environment. Vacuum-sealed with desiccant to preserve material quality from factory to printer.

Advantages

PLA+ offers superior mechanical properties compared to standard PLA, with a tensile strength of ≥50 MPa and elongation at break of ≥15%. The tight diameter tolerance of ±0.03 mm guarantees smooth, clog-free extrusion. The refill format reduces plastic waste and is compatible with reusable spools, supporting sustainable printing practices. Its low odour and 100% bubble-free composition enhance print reliability and user comfort.

Suitable for

• Functional prototypes requiring higher impact strength
• Durable end-use parts and mechanical components
• Educational projects and hobbyist printing
• Models needing a vivid, consistent blue finish
• Users with reusable spool systems seeking eco-friendly options

Key specifications

• Material: PLA+ (Polylactic Acid Plus)
• Filament diameter: 1.75 mm (±0.03 mm)
• Net weight: 1 kg
• Colour: Blue
• Spool type: Refill (spool-less)
• Recommended printing temperature: 200-230 °C
• Recommended bed temperature: 45-60 °C
• Tensile strength: ≥50 MPa
• Elongation at break: ≥15%
• Melt flow index: 2-4 g/10min (190°C, 2.16kg)
• Density: 1.24 g/cm³
• Vicat softening temperature: ≥60 °C
• Glass transition temperature: ≥55 °C
• Recommended print speed: 40-100 mm/s
• Packaging: Vacuum sealed with desiccant

Recommendations

For best results, print with a nozzle temperature of 210 °C and a bed temperature of 55 °C on a clean build surface. Store the refill in a dry, cool place, preferably in a sealed container with desiccant when not in use. Use a reusable spool with a secure locking mechanism to prevent tangling during printing. This filament pairs well with direct-drive extruders and all-metal hotends capable of maintaining stable temperatures.