When I started my adventures with 3D printers in 2015 I printed all the time with ABS. More than once, with the intention of post-processing with acetone steam to polish it. It wasn't until a year ago that I started using PLA and PETG.
According to a lot of content on the internet, PLA does not suffer (or almost does not suffer) effects when having contact with acetone. I am a consumer of Printalot filament (I am Argentine, and they are nationally produced, very good).
Big was my surprise when discovering that acetone discolors and melts the PLA produced by them. In contrast, Createbot brand filament (of Chinese origin) does not show any visile change. For this reason I decided to contact Printalot, to which they replied that they use pure PLA to produce their rolls and that is why it becomes rubbery. In my case, I print it correctly between 220 ° and 225 ° (celcius) at a speed between 85 and 100mm / s and the bed between 60 ° and 65 °.
What do you know or think about it? Greetings to all!