ESUN PLA+ 1,75mm koelwit 1kg refill 3D filament (PLA+175C-W1R1)

Makers running high-detail prototypes or cosplay pieces on open-frame FDM printers often struggle with brittle PLA that snaps mid-print. This 1kg refill coil of ESUN PLA+ in Cold White solves that with a toughened PLA formula that delivers up to 29% elongation at break and 60 MPa tensile strength, so thin walls and snap-fit joints survive handling. The 1.75mm filament is wound on a spool-less refill that drops straight onto reusable master spools, cutting plastic waste and storage bulk in busy workshops.

Key specifications

• Material: PLA+ (Polylactic Acid Plus)
• Filament diameter: 1.75 mm (±0.03 mm tolerance)
• Net weight: 1 kg (refill coil, no spool)
• Colour: Cold White
• Print temperature: 200–230 °C
• Bed temperature: 45–60 °C
• Print speed: 40–100 mm/s
• Tensile strength: ≥60 MPa
• Elongation at break: ≥29%
• Melt flow index: 2–5 g/10min (190 °C, 2.16 kg)
• Density: 1.24 g/cm³
• Low odour, low warping, bubble-free
• Vacuum sealed with desiccant
• RoHS compliant, biodegradable

Why choose it

ESUN PLA+ bridges the gap between standard PLA and ABS. It prints as easily as PLA but resists cracking and deforming under load, making it ideal for functional parts that need a bit of give. The Cold White shade offers a clean, opaque finish that hides layer lines well and takes paint or dye without bleeding. Because it comes as a refill, you reuse your existing spool, reducing landfill and saving storage space—a smart move for high-volume print farms.

Ideal use cases

• Functional prototypes and end-use parts requiring impact resistance
• Cosplay armour and props that need flexibility without shattering
• Snap-fit enclosures, clips, and living hinges
• Educational projects where low warping and easy bed adhesion matter
• Architectural models needing a bright, consistent white finish

Good to know

Store the refill in its resealable vacuum bag with the included desiccant to keep moisture out—PLA+ absorbs humidity faster than standard PLA, which can cause popping and rough surfaces. For best results, print a temperature tower to dial in your hotend, and use a heated bed at 45–60 °C with a light adhesive like glue stick on glass. The filament diameter tolerance of ±0.03 mm ensures consistent extrusion, reducing clogs and under-extrusion on long prints.