Polylactic Acid (PLA)

• Frequently used in 3D printing as it can be extruded at relatively low temperatures, does not generate toxic fumes, or require a heated bed, and is generally easy to work with.
• Relatively inexpensive compared to some other filaments.
• Low shrinkage means it can be printed with accuracy.
• Biodegradable in the right (industrial) conditions
  • Cannot go in home recycling in York - only PET 1, HDPE 2 and PP 5 are currently recycled.
• Relatively low impact resistant - shatters and breaks rather than flexes.
• High temperatures will cause warping.
• Some UV resistance, but over time it will discolour and become brittle - not generally suitable for prolonged outdoor use.
• Hot and humid environments can also cause degradation.