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SUNLU PLA 3D Printer Filament

SUNLU PLA 3D Printer Filament

By SUNLU · Filament & Resin · 3D Printing · More from SUNLU

  • 1.75 mm diameter
  • ±0.02 mm tolerance
  • 1 kg spool
  • nozzle 200-210°C
  • bed 50-60°C

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Problems, parts and running costs

Summary

SUNLU PLA is a budget standard-PLA filament in a wide color range with a stated +/-0.02 mm diameter tolerance, aimed at everyday printing. Check your parts before you buy: it is not suited to tight-tolerance, load-bearing or heat-exposed work, and spools vary batch to batch.

Strengths

  • Low price and wide availability, roughly $14-20/kg with frequent multi-pack discounts.
  • Easy printing within normal PLA temperature windows on common printers.
  • Clean first layers and reliable layer adhesion for ordinary parts.
  • Broad color range; common colors reported most consistent.
  • Neatly wound spools reduce tangles on long or unattended prints.
  • Vacuum-sealed packaging protects from moisture in transit.

Weaknesses

  • Batch-to-batch variance: two spools of the same color can need a temperature tweak; run a test print per new spool.
  • Moisture sensitivity: opened spools can show popping, rough extrusion and stringing; drying 4-6 h at 45-50 C or dry-box storage helps.
  • Not suited to tight-tolerance, dimensional or load-bearing parts; premium PLA is recommended there.
  • Minor color differences between production batches can occur.
  • Stringing varies by printer and profile; not always plug-and-play.
  • Sold as a consumable with no product warranty; 7-day return and 15-day exchange windows apply.

Verified specifications

ManufacturerSUNLU.
Materialstandard PLA (entry-level, low-warping).
Diameter1.75 mm (also offered in 2.85 mm and 3 mm).
Stated diameter tolerance1.75 +/- 0.02 mm.
Spool weight1 kg (also 0.25 kg, 0.5 kg, 2 kg, 3 kg and 5 kg).
Density1.23 g/cm3.
Tensile strength40 +/- 6 MPa.
Flexural strength65 +/- 6 MPa.
Notched Izod impact strength5 +/- 3 kJ/m2.
Elongation at break10 +/- 5 %.
Shore hardness
Melt flow index6.9 +/- 3 g/10 min.
Heat deflection temperature55 +/- 5 C.
Vicat softening temperature54 C.
Shrinkage0.1-0.3 %.
Glass transition temperature63 C.
Melting temperature164 C.
Decomposition temperature (5% weight loss): 374 C.
Nozzle temperature200-210 C (manufacturer page); 200-240 C (SpoolScout data sheet).
Print speed50-100 mm/s at 200-210 C; 100-200 mm/s at 210-240 C.
Bed temperature50-60 C (manufacturer page); 60-70 C (SpoolScout).
Retraction distance0.8-1.2 mm; retraction speed 30-40 mm/s.
Cooling fanon.
Build surfacetextured PEI.
Dimensions8.00 x 2.50 in spool, 2.20 in hub hole.
Colorbrown variant sold as “Coffee Brown”, manufacturer color code #362111.
Full research notes and sources

The manufacturer page lists nozzle 200-210 C and bed 50-60 C, while the SpoolScout data sheet sourced from the manufacturer TDS widens nozzle to 200-240 C and bed to 60-70 C for higher-speed printing. Print speed runs 50-100 mm/s at 200-210 C and 100-200 mm/s at 210-240 C. Retraction is 0.8-1.2 mm at 30-40 mm/s, cooling fan on, on a textured PEI build surface. Standard PLA is for indoor, ordinary use; it is not for heat, UV, chemicals, sustained load or outdoor use.

Batch variance and moisture

Owners report that two spools of the same color can need a temperature tweak, so run one test print per new spool. Moisture is the other recurring caution: spools left open can show popping, rough extrusion and stringing, and drying 4-6 h at 45-50 C or dry-box storage helps. Neat-winding and “100% neat rate” claims are manufacturer claims, not independently measured, and spool dimensions can affect fit in some automatic material systems, so check reel dimensions against printer guidance.

Costs and warranty

Independent filament database lists the brown 1 kg spool at $19.99 as of 2026-10-25. Review sites cite roughly $14-20/kg street price with multi-pack discounts. One review listed $17.99 discounted from $27.99 for the black 1 kg variant. Manufacturer direct store has run sales such as -33% on coffee brown to $11.99 in some regions. At ~$12-14/kg on sale it is strong value for drafts, volume and classroom printing; at ~$15-20/kg fair-to-good value against other reliable budget brands; above ~$20/kg premium brands with tighter consistency become competitive. SUNLU treats filaments as consumables with no product warranty; returns within 7 calendar days and exchanges within 15 calendar days from receipt. Retailer and shipper policies may differ and govern the actual purchase. There is no subscription or proprietary consumable lock-in, and drying equipment is optional but recommended for opened spools.

Is it worth it?

For hobbyists, students, makerspaces, print farms and small shops printing non-critical parts, SUNLU PLA is a defensible buy around $12-20/kg. It is a poor fit for tight-tolerance assemblies, load-bearing parts and premium cosmetic retail products, where premium PLA offers tighter consistency for a few dollars more. No independent instrumented lab test of this exact filament was found; available reviews are spec-led or owner-experience based.

Which model this is

This page covers standard SUNLU PLA, not SUNLU PLA+, PLA Meta, PLA 2.0, high-speed, matte, silk or CF lines, which have different formulations and print settings. The brown 1 kg variant is ASIN B0DPFYT8DW. Manufacturer color names vary (“Brown”, “Coffee Brown”, “Coffee”), so verify color and seller at checkout. The manufacturer page covers the whole SUNLU PLA line in many colors and weights.

Sources

Manufacturer:

Independent reviews:

Owner reports:

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