Polymaker Light Weight PLA Filament 1.75mm White - Low Density Prints

Our review examines the Polymaker Light Weight PLA 1.75mm in white and finds it best suited for makers who need lighter, stiff prints without changing printer settings. In this review the biggest reason to consider this filament is its low density and matte finish that produce lighter parts with the same nozzle and bed settings as regular PLA, while avoiding the foaming problems common to other lightweight PLAs. It is especially appealing for hobbyists making radio-controlled parts and display models that benefit from reduced mass and a paintable surface.

Key Features

• Low density: With a density of about 0.9g/cm3 it produces noticeably lighter parts versus standard PLA while keeping familiar handling.
• PLA-compatible settings: Uses the same nozzle, bed temperature and printing speed as regular PLA so it works on most 3D printers without special tuning.
• No foaming during print: Unlike some lightweight PLAs, it does not foam when extruded, reducing common surface defects.
• Good rigidity and adhesion: The filament delivers high rigidity and strong layer bonding suitable for stiff, functional parts like RC components.
• Matte finish and paintability: Produces a matte surface that conceals layer lines well and takes paint easily for finished models or gifts.
• Packaging and handling: Supplied dried, vacuum-sealed with desiccant and wound to avoid tangles for reliable first-use performance.

Who It's For

This filament is a good match for hobbyists, modelers, and small-scale fabricators who want lighter parts without learning new print profiles; it is particularly useful for radio-controlled plane builders and anyone creating display pieces that will be painted. The matte surface and reliable bed adhesion make it attractive to users who value finish quality and dimensional accuracy.

Those who should look elsewhere include users who need ultralight foamed structures for cushioning or extreme weight reduction, and makers who require very flexible or rubbery materials since this is a rigid PLA. Also, if a customer must eliminate every instance of stringing reported by some users, additional tuning may be required.

Pros & Cons

Pros

• Lightweight material that reduces part mass without changing print temperatures.
• High rigidity and consistent layer adhesion for strong, stiff prints.
• Matte finish that hides layers and accepts paint well for finished models.
• Well packaged and tangle-free spool handling for reliable first prints.

Cons

• Some users report mixed strength results and occasional brittle prints or adhesion issues that may need tuning.
• A few customers noted stringing on initial prints, so retraction or temperature adjustments might be necessary.

Specifications

Material	Lightweight PLA (PLA-LW)
Diameter	1.75mm
Spool weight	0.8kg
Density	Approximately 0.9g/cm3
Recommended nozzle	190C
Recommended bed	50C
Print speed	50mm/s (same as regular PLA)

Our Verdict

The Polymaker Light Weight PLA 1.75mm White is a practical choice for makers who want lighter, stiff prints without learning new printer settings; it offers a pleasing matte finish, good bed adhesion and careful packaging for reliable use. For those making rigid parts and painted models it represents good value, but expect to do minor tuning to address occasional stringing or adhesion variation reported by some users.

Frequently Asked Questions

Do I need special slicer settings?
No special profile is required; recommended settings match regular PLA (190C nozzle, 50C bed), though small retraction tweaks can help reduce stringing.

Will this filament foam during printing?
No, this lightweight PLA is formulated not to foam, avoiding the surface defects common with some other low-density PLAs.

How should I store the filament?
Keep the spool sealed with the desiccant in the resealable bag when not in use to prevent moisture uptake and preserve print quality.