crewchief227
Needle-chuck Ninja
So I found the MSDS for 4020. And from what I can tell the only difference from 4012 is the Acetone. But the bottles could have told me that. The MSDS told me the correct mixing ratios . So I'm on the hunt for the purest Acetone I can find (seems plentiful & cheap locally), and since I have over 36oz of 4012 on hand gonna take my graduated cylinders, and do a little mixing . I'll report back with my findings compared to the little bit of 4020 I have left