What temperature should I print SUNLU PLA at?

Print SUNLU PLA at 200–210°C nozzle and 60°C bed as a starting point. SUNLU PLA prints on the cooler side compared to other brands — many users find 205°C optimal. If you see layer delamination or underextrusion, raise 5°C. If you see stringing or blobs, lower 5°C or reduce retraction distance by 0.5 mm.

Is SUNLU filament good quality?

SUNLU is a solid mid-tier filament brand with a good reputation for consistent diameter (±0.02 mm stated tolerance) and reliable prints. Their PLA, Silk PLA, and PETG are popular for the price. Build quality is not in the same tier as Prusament or Polymaker for tight-tolerance engineering parts, but is excellent for general printing, models, and decorative work. Their Silk PLA range is one of the best-value silk filaments on the market.

Why does SUNLU PETG string so much?

SUNLU PETG is more prone to stringing than many competitors. Fix it by: (1) keeping nozzle temp at 240°C maximum — higher temps make it worse, (2) enabling combing mode in your slicer, (3) using retraction speed of 25 mm/s rather than the slicer default, (4) increasing travel speed to 180+ mm/s, (5) using a small Z-hop (0.2 mm). Do not raise retraction distance above 2 mm on direct drive — it can cause clogs with PETG.

What are the best settings for SUNLU Silk PLA?

SUNLU Silk PLA prints best at 215–225°C nozzle and 60°C bed. The key adjustments vs. regular PLA: slow outer wall speed to 40–50 mm/s for best sheen, reduce retraction speed to 25–30 mm/s (silk additives can cause ooze with fast retraction), and keep fan at 80–100%. Textured or smooth PEI both work. The silk finish shows layer lines more than matte PLA — use 0.1–0.15 mm layer height for the best appearance.

Filament Brands

SUNLU Filament Settings

SUNLU is a popular mid-tier filament brand known for consistent diameter, wide color options, and one of the best-value Silk PLA ranges on the market. These are the recommended slicer settings for SUNLU PLA, PETG, ABS, TPU, and Silk PLA on any FDM 3D printer.

Budget–mid tierPLA · Silk · PETG · ABS · TPUAmazon / AliExpress

Settings by material

PLA

Nozzle temp190–220°CStart at 205°C

Bed temp55–65°CStart at 60°C

Retraction1–2 mm (DD) / 4–6 mm (Bowden)45 mm/s

Fan100%

Print speed50–80 mm/s

Bed surfaceSmooth PEI, glass, BuildTak

SUNLU PLA prints on the cooler end — start at 205°C and raise only if you see underextrusion. Known for good bed adhesion at 60°C. Diameter consistency is tight (±0.02 mm stated), so standard retraction settings work well.

PLA+ (ePLA)

Nozzle temp210–235°CStart at 220°C

Bed temp60–70°CStart at 65°C

Retraction1–2 mm (DD) / 5–6 mm (Bowden)45 mm/s

Fan100%

Print speed45–70 mm/s

Bed surfaceSmooth PEI, glass

SUNLU ePLA+ is their toughened PLA with better impact resistance. Print 10–15°C hotter than their standard PLA. Slightly more stringing — reduce temperature before increasing retraction.

Silk PLA

Nozzle temp210–230°CStart at 220°C

Bed temp55–65°CStart at 60°C

Retraction1–2 mm (DD) / 4–6 mm (Bowden)30 mm/s

Fan80–100%

Print speed40–60 mm/s

Bed surfaceSmooth PEI, glass

SUNLU Silk PLA is one of their bestsellers. The silk additive requires slightly higher temps and slower retraction speed. Reduce print speed to 40–50 mm/s for best sheen on outer walls. Fan at 80–100% prevents over-melting the glossy surface.

PETG

Nozzle temp230–250°CStart at 240°C

Bed temp70–85°CStart at 80°C

Retraction1–2 mm (DD) / 5–7 mm (Bowden)25 mm/s

Fan30–50%

Print speed35–55 mm/s

Bed surfaceTextured PEI, glass + glue

SUNLU PETG is known to string more than average — keep nozzle at 240°C (not higher) and use combing mode. Do not use smooth PEI without a release agent. Reduce fan below 50% to maintain good layer bonding.

ABS

Nozzle temp230–250°CStart at 240°C

Bed temp100–110°CStart at 105°C

Retraction1–2 mm (DD) / 5–7 mm (Bowden)30 mm/s

Fan0%

Print speed40–60 mm/s

Bed surfaceSmooth PEI + ABS slurry, Kapton tape

SUNLU ABS follows standard ABS rules — enclosure required for anything larger than 50 mm. Disable fan completely. Use an ABS slurry (ABS dissolved in acetone) on smooth PEI for first-layer adhesion on larger parts.

TPU 95A

Nozzle temp220–235°CStart at 230°C

Bed temp40–60°CStart at 50°C

Retraction0–1 mm (DD only)20 mm/s

Fan100%

Print speed20–30 mm/s

Bed surfaceSmooth PEI, glass

SUNLU TPU 95A requires direct drive. Print at 20–25 mm/s — it is quite stiff for a TPU but Bowden setups still cause inconsistent extrusion. Disable retraction or keep it at 0.5 mm maximum to prevent grinding.

SUNLU quick tips

Print cooler than you think: SUNLU PLA runs 5–10°C cooler than many brands. Start at 200–205°C, not 215°C. Too-hot PLA causes stringing and blobs before underextrusion becomes a problem with SUNLU.
Silk PLA: slow the outer wall: The metallic sheen on Silk PLA is ruined by fast outer walls. Set outer wall speed to 40 mm/s maximum and you will see a dramatic improvement in surface quality.
PETG stringing is a known issue: Enable combing mode and lower temperature to 240°C before touching retraction settings. SUNLU PETG responds better to temperature reduction than retraction increases.
Moisture management: SUNLU vacuum-seals their filament but the bags are not resealable. Transfer to airtight containers with desiccant after opening — especially important for PETG and ABS.
ABS needs enclosure: Like all ABS, SUNLU ABS will warp without enclosure on parts wider than 50 mm. For open-frame printers, substitute ASA or PETG for most use cases.