About this item: 
3 Color Changing Filament with Temperature: White-Light blue-Dark blue. Above 33°(e.g. hot air), filament will quickly turn white; Below 33°(e.g.,cold air), filament will quickly turn dark blue; At room temperature or during temperature changes, the color will appear light blue (will be affected by weather temperature) 
Widely Used: Temperature color change filament are especially suitable for use in combination with objects that have temperature. For example, hot coffee cup holders in winter, cold beer mugs in summer, tool models for refrigerators, scented candles box, lamp decoration, children's baths Toys, all kinds of bathroom tools, etc., you can feel the surprising color change 
High-quality Materials: ST-PLA filament heat color changing, special formula improves the strength of special filaments, more tough than glowing or other special PLA filaments, excellent layer adhesion to reduce warpage. Please avoid direct sunlight for a long time, exposure causes colors to fade faster 
PLA Filament Parameters: 1.75 mm Blue to White color change filament, Tolerance: ±0.03 mm, Net Weight: 1KG (2.2 LBS). Recommended print temp (195-210℃), recommended hot bed temperature 60-70℃, recommended print speed 60mm/s 
Considerate Packaging: Use recyclable material, Customize Blue Carton + Cardboard Spool + Vacuum Sealed Packaging, reduce the accumulation of plastic spool, Vacuum and moisture-proof, isolate dust and keep filaments dry 
Print Smoothly: No bubbles, strong toughness, feed smoothly and constantly without clogging the nozzle or extruder. During printing, hot bed temperature will change the color of the model to white; Printing reaches about 50%, white and light blue will appear; Finished model appears blue 
After using the filament, please put it in a sealed bag for storage, in your next use, please first dry at 50 ° temperature for 2 hours