Light Weight PLA

Spectrum Light Weight PLA is a modern filament based on PLA. The uniqueness of this material results from the use of innovative active foaming technology, activated by temperature.

At the expansion peak, the filament increases its volume by over 2 times, reaching an extremely low density of approximately 0.52 g/cm3. This material gives you incredible flexibility in regulating material flow, allowing it to be reduced by up to 55%. This, in turn, allows you to 3D-print objects with significantly reduced weight. Additionally, it is possible to use the foaming ability to speed up the 3D printing process by using thicker layers or single, solid outlines.

The speed and level of foaming can be controlled by adjusting the printing temperature, which allows you to adjust the density of the material for various elements depending on your needs. This filament is an excellent solution for printing RC airplane models and other projects where low weight is crucial. Using Spectrum Light Weight PLA leads to a significant reduction in the weight of 3D-printed parts, up to 50% compared to traditional PLA.

The unique properties of this filament allow you to enjoy not only low weight, but also exceptional durability and precision of prints. The matte and rough surface finish provides an attractive appearance for the prints and effectively masks the layers.

Foaming is activated at a printing temperature of 220°C and should reach its peak in the temperature range of 240°C – 250°C. Please remember that if the flow coefficient is significantly reduced, the filament may foam before leaving the nozzle and the extruder may become clogged. The color will become slightly lighter, when the material is fully foamed.

Technical data

Available diameter:
1.75 / 2.85 [mm]
Diameter tolerance:
+/- 0.03 [mm]
0.52 - 1.24 g/cm3
Thermal resistance:
Surface finish:
dull, rough
Verify your spool:
YES (online graph: diameter across spool, average of diameter, ovality, standard deviation individually for each spool)

How to use

Printing temperature:
Table temperature:
Recommended printing speed:
30-100 mm/s
Recommended wall thickness:
0.40 - 2.70mm
Recommended layer height:
0.05 - 0.30mm
do 100%
Closed chamber:
not required
Filament Dryer:
not required
Ruby or tempered nozzle:
not required
Adhesive agents:
not required (for better adhesion or to avoid warping: Dimafix, 3DLac, Magigoo)

Material characteristics

  • Significant reduction in the weight of printed parts, up to 50%
  • Active foaming technology
  • Customizable material density
  • One spool of Light Weight PLA can yield the same number of prints as two spools of standard PLA due to significantly reduced flow
  • Matte finish that highly reduce layers visibility


  • Complex geometries requiring support material
Not sure what filament to choose?

Check filament parameters using our comparison tool.

Verify Your Spool

Check out our tool to verify purchased filaments.

Where to buy

Check the list of our local and online distributors.

Verify Your Spool

Check the course of diameter on the entire length of the spool, ovality, mean diameter and standard deviation for each manufactured spool individually.

Where to buy

Check the list of our local and online distributors.

A wide range of products

Wide portfolio consisting of over 50 filaments with a versatile range of properties and applications, divided into three segments: desktop easy-to-use, industrial grade and high performance.

High quality

Innovation, extrusion know-how and highest quality filaments are the pillars of Spectrum philosophy. Our team is working continously on the development of new materials and their applications.

European made

All filaments from our portfolio are in-house made. We use modern production lines equipped with non-standard solutions to obtain highest quality final product.

Professional technical support

Our qualified support team helps at every stage from material selection to the 3D printing process.

Not sure what filament to choose?



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