[STAR] Alchement - PLA Series, 3D Filament, 1.75mm, 1kg (Transparent) PLA is biodegradable and is the most environmentally friendly 3D printing material you can find. As 3D printing turns into the next industrial revolution, printing with environmentally friendly materials like PLA will become increasingly important. PLA naturally degrades when exposed to the environment. If PLA is placed in the ocean, it will fully degrade within 6 months to 2 years. Contrast that to conventional plastics which take 1000 years and you can see why PLA is such an environmental hero. At the same time PLA maintains incredibly strength and holds up very well well used in normal household applications. Recommended Temperature : 190 C - 230 C