Acetone is used by some to finish ABS prints into a smooth, glossy surface. ... It's a semi-dangerous activity, as Acetone is flammable and toxic, but many take the right precautions and get the job done. But it doesn't work with PLA.

Can you polish PLA with acetone?

Acetone is a popular choice for removing 3D-printed parts from the build plate and clean up. It is true that acetone dissolves PLA at a certain level. ... While there isn't one particular solvent that does the job for all types of PLA filament, it is possible to get good results with some other solvents.

Can you use acetone to smooth 3D prints?

Acetone is a great tool for everything between cleaning your hot end to welding together two 3D printed parts. However, you need to know that acetone can also be very dangerous if used incorrectly. Acetone is very flammable, so don't use it near fire or something that can cause a spark.