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SUNLU PLA 3D Printer Filament Sky Blue 1KG

SUNLU PLA 3D Printer Filament Sky Blue 1KG

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

  • 1.75mm diameter
  • 1kg spool
  • ±0.02mm tolerance
  • 200-240°C nozzle temp
  • 50-60°C bed temp

Lowest price seen
$4.55
from $4.55 at SUNLU Stores · Checked Oct 26, 2026

New
Used, refurbished, open-box

Stores are listed in a fixed order, never by price or commission. Prices are snapshots. Check the current price with the store.

Problems, parts and running costs

Summary

A budget 1.75 mm standard PLA spool for everyday FDM printing, in Sky Blue, sold by SUNLU. Check your print requirements before buying: batch-to-batch variance and moisture sensitivity make it a better fit for drafts and prototypes than for tight-tolerance or load-bearing parts.

Strengths

  • Budget price per kilogram with wide retail availability.
  • Easy to print on most FDM printers; beginner-friendly.
  • Broad color range, with Sky Blue a stocked variant.
  • Low warping on everyday prints; good value for drafts and prototypes.
  • Vacuum packaging and pre-dried filament claimed by reviewers.
  • Extensive community support and shared print profiles.

Weaknesses

  • Batch-to-batch variance; a new spool may need a temperature tweak.
  • Moisture sensitivity causes stringing and poor surface finish on open-stored spools.
  • Not suited to tight-tolerance, dimensional or load-bearing parts.
  • Minor color differences between production batches.
  • Some spools may not fit enclosed feeders or AMS-style systems.
  • No independent instrumented tests found; specs are manufacturer and TDS values.

Verified specifications

Materialstandard PLA (basic), 1.75 mm diameter, ±0.02 mm tolerance.
Spool1 kg (1000 g); empty spool 180 g.
Density1.23 g/cm³.
Tensile strength40±6 MPa (manufacturer); TDS extraction gives 27 MPa (X-Y) and 40 MPa (Z).
Flexural strength65±6 MPa (manufacturer); TDS extraction gives 59 MPa (X-Y) and 71 MPa (Z).
Flexural modulus2300±300 MPa.
Elongation at break10±5% (manufacturer); 10% (X-Y) and 20% (Z) per TDS extraction.
Notched Izod impact strength5±3 kJ/m² (manufacturer); 4.5 kJ/m² per TDS extraction.
Heat deflection temperature55±5°C at 0.45 MPa (manufacturer); 50°C at 0.45 MPa and 60°C at 1.8 MPa per TDS extraction.
Vicat softening temperature54°C.
Glass transition temperature63°C.
Melting temperature164°C.
Decomposition temperature (5% weight loss): 374°C.
Shore hardness80 D.
Moulding shrinkage0.1–0.3% (manufacturer); 0.2% per TDS extraction.
Coefficient of thermal expansion101 µm/(m·°C).
Nozzle temperature200–240°C (manufacturer guidance: 200–210°C at 50–100 mm/s, 210–240°C at 100–200 mm/s).
Bed temperature50–60°C (manufacturer); 60–70°C per TDS aggregator.
Print speed50–200 mm/s; maximum 200 mm/s.
Retraction0.8–1.2 mm distance at 30–40 mm/s.
Cooling fanon.
Maximum volumetric speed22 mm³/s; flow ratio 0.833.
Melt mass-flow rate6.9±3 g/10 min.
Flammability (UL 94)HB.
Drying50°C for 8 h.
Color (Sky Blue)manufacturer RGB #15A9C2; measured RGB #0CB7CC; perceptual estimate #3cd0fd (CIE Lab* L 78.0, a -23.8, b -33.0).
AMS compatibility (per 3D Filament Profiles): AMS Lite, AMS, AMS 2 Pro, AMS HT; the manufacturer warns the reel must fit an enclosed feeder.
Full research notes and sources

Printing and tuning

SUNLU lists nozzle 200–240°C with bed 50–60°C; a TDS aggregator lists bed 60–70°C. The manufacturer suggests 200–210°C at 50–100 mm/s and 210–240°C at 100–200 mm/s. Reconcile the bed temperature against the TDS PDF before relying on either. Print speed 50–200 mm/s, retraction 0.8–1.2 mm at 30–40 mm/s, cooling fan on. Batch variance means a new spool may need a temperature tweak. The manufacturer claim of compatibility with 99% of FDM printers is not a guarantee of enclosed-feeder fit.

Moisture and storage

Store opened spools sealed with desiccant; dry spools open more than a few weeks, about 4–6 h at 45–50°C. Vacuum packaging and pre-dried filament are claimed by reviewers. Stringing is reported on SUNLU PLA and PLA+; it is usually manageable with drying and tuning. Ownership costs are limited to desiccant, dry storage and occasional drying; there is no subscription or lock-in.

Color and batch variance

Sky Blue references differ by source: manufacturer RGB #15A9C2, measured RGB #0CB7CC, perceptual estimate #3cd0fd. “Sky Blue” appears in the store’s color image set but is not among the 20 colors in the color code table on the sunlu.com PLA page, so treat it as a current or variant color name. Minor color differences between production batches are reported. Color naming also varies: “PLA”, “SUNLU PLA 3D Printer Filament 1KG”, and “PLA Basic” are all used.

Is it worth it?

Budget tier at roughly $11–17 per kg. 3D Filament Profiles lists 1 kg with spool at $11.49 (CA), $11.59 (US), $14.49 (EU) for Sky Blue, updated about 17 h before page capture. Easy4DPrint estimates a street price of about $15.99/kg. SpoolScout lists 1 kg options from $12.59 to $17.08. Premium PLA (Prusament-class, PolyMaker) costs more and offers tighter consistency; choose it for dimensional or functional parts. Strong value for high-volume iteration; weak value where tight tolerance, heat or outdoor exposure matter.

Which model this is

This page covers SUNLU PLA, standard/basic PLA, 1.75 mm, 1 kg spool, color Sky Blue, sold by SUNLU. Do not confuse it with SUNLU PLA+, PLA+ 2.0, High Speed PLA, PLA Meta, Matte PLA, Silk PLA, PLA-CF or other SUNLU families. Confirm the exact listing at checkout. ASIN B0FYVG3YW1.

Sources

Manufacturer:

Independent reviews:

Owner reports:

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