The following is an updated list of specifications, advantages and disadvantages of PLA (Polylactic Acid) used in 3D Printing.
PLA is the most basic and commonly used material in 3D printing due to its low cost and ease of printing. The material is biodegradable and is useful for making initial prototypes that are non-moving parts, or do not require durability or wear resistance. PLA material appears to be more flexible when fresh off the 3D printer, but will gradually become more brittle after several days.
The finishing of PLA 3D printed items are generally matt and depending on the printer, some may appear to have strings (lines).
|Chemical Name||Polylactic Acid|
No toxic fumes (Lactide)
|Disadvantages||Low heat resistance. |
Stringing and oozing.
Brittle when harden.
Poor chemical resistant.
|Chemical Resistance||Salt, oil, UV|
|Fumes Emission||Non-toxic lactide|
|Food Safe||Yes, if certified.|
|Uses||Non-functional prototype |
Indoor used products
|Ease of Printing||High|
|Typical Print Speed Range |
|Extruder Temperature||180-230 oC|
|Cooling Method||Cooling fan|
|Build Surface||PEI sheet. |