PLA  Special THERMOACTIVE RED Filament from Spectrum
 
is a filament based on pure PLA blended with a thermochromic pigment.
 Due to this extremely original addition, additive manufactured items change their colour according to the temperature. The colour changes from red to cream once the surface temperature of the item exceeds 30°C.
 The previous colour is restored gradually once the item reaches its initial temperature.
 
Filament specification:
 
Filament diameter: 1.75mm ± 0.05mm
Nozzle temperature: 190-220°C
Bed temperature: 0-45°C
Printing speed: 40-110mm/s 
Closed chamber: Not necessary 
 
Weight: 0.5kg.