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PLA Thermoactive filament Spectrum Filaments 1,75 mm / 1,0 kg

Thermoactive PLA plastic for 3D printing

Thermoactive plastic PLA Spectrum is a material based on pure PLA mixed with thermochromic pigment. Thus, this plastic is able to change color with changing temperature.

Thanks to this extremely original addition, products made with additives change their color according to temperature. The color changes from red to cream when the surface temperature of the product exceeds 30 ° C. The previous color is gradually restored when the material is cooled to the initial temperature.

Color-changing PLA properties

  • Colour changing ability at ca. 30 °C.
  • Warp-free printing.
  • Excellent layer lamination.
  • High aesthetic surface quality.
  • No shrinkage after cooling.


  • Where is crucial to identify the condition of equipment visually based on phenomena measured organoleptically (the effects are visible with the naked eye).
  • Educational projects.
  • Temperature sensors.
  • Coating for hot beverage mugs.
  • Coating for kettles and thermostats for other electronic devices.

Thermoactive plastic PLA changes color with changing temperature


A 1.0 kg filament is wound on a transparent spool, which contains information about the type of material, diameter, color and recommended printing temperature. Each coil is packed in a vacuum with a dehumidifier. All in the original Spectrum Filaments foil cardboard.

Coil dimensions

  • Outer diameter - 200 mm.
  • Width - 67 mm.
  • Inner diameter - 52 mm.
  • Weight of empty coil - ± 250 g.

Verify quality of 3D plastic thread 

Spectrum Filaments is the only company in Poland and one of the few in the world that has a tool for testing purchased filaments. VERIFY YOUR SPOOL is the most accurate quality control system on the market, ensuring that Spectrum Filaments products meet his stringent requirements.

Filament for 3D printers is produced by free extrusion, which is one of the most difficult extrusion processing technologies, due to the particularly significant influence of process parameters on product dimensions and material homogenization. During the manufacturing process, each 1mm of Spectrum Filaments is continuously measured in 2 axes with an accuracy of ±0.8 µm, resulting in a quality end product. To prove this, Spectrum Filaments, as one of the few manufacturers in the world, has introduced the possibility of an online presentation, individually for each coil produced:

  • diameter travel along the entire length of the coil;
  • average diameter;
  • ovality;
  • standard deviation.
Buy thermoactive filament for 3D printing

FDM materials
Ø Of Plastic (mm) 1,75
Print Temperature (°C) Up to 270
Material PLA
Diameter Tolerance (mm) +/- 0,05
Density (g/cm3) 1,24
Printing Options
Print Temperature (°C) 190 - 220
Bed Temperature (°C) 0 - 45
Heated Bed Necessary
Closed Chamber Not required
Active Cooling Fan (%) Up to 100
Flowrate (%) 100 - 105
Print Speed (mm/s) 40 - 110
Retraction - Direct (mm) 1 - 3
Retraction - Bowden (mm) 4 - 6
Retraction Speed (mm/s) 25 - 45
Manufacturer Country Poland
Weight & Dimensions
Plastic Weight (kg) 1,0
Weight Brutto (kg) 1,4

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