3d filament comparison PETG vs PLA vs ABS
PETG vs PLA vs ABS
PLA (or polylactic acid) is a thermoplastic material and is the most common 3D printing filament. PLA filament is especially easy to 3D print and can be produced from renewable materials. There are many different colors and varieties, and almost every filament producer on the market has a version of PLA. From additives like metal powders, hemp, coffee, or wood, PLA is unbeatable when it comes to variety, even compared to PETG.
Like PLA, PETG is excellent for low-warping, showing only minor shrinkage during cooling. While PETG may exhibit better layer adhesion than its competitor, it may adhere to itself too well, leaving you with more frequent nozzle clogs and stringing.
When it comes to printed parts, PETG is typically more durable, stronger, temperature resistant, and can handle stronger impacts, although it’s more prone to scratching and surface damage compared to PLA. Both materials are considered food safe, although proper precautions are needed regardless. ABS, on the other hand, is not recommended for prints that may come into contact with food.
Acrylonitrile butadiene styrene (better known as ABS) – the other material option that you’ll frequently see – is cheap, durable, lightweight, and easily extruded, making it great for 3D printing. While ABS and PETG are both stronger and more durable than PLA, PETG can offer some flexibility that would snap ABS in half.
There are also come key disadvantages to using ABS filament. For one, a heated build platform is an absolute must, and a printer enclosure is highly recommended to prevent the print from cooling too quickly, leading to warping. Another drawback is the intense fumes that come from printing. They can be dangerous for people (or pets) with breathing difficulties.
The main advantage that ABS can offer is its solubility in acetone, which is great for creating an unbelievably smooth finish. If you’re going for a fresh-off-the-injection-mold look with PETG, you’ll have to opt for some manual methods.
