Good to see you Shadow!
If you're looking to replicate the Isopropyl Alcohol Tar extract from the "before times" I wouldn't go for acetone. Everything I've found in a quick googling combines acetone with IPA to get a more "pure" tar...
If I couldnt find pharmaceutical-grade 99% IPA at the drug store due to the pandemic I would try Ethyl Alcohol (aka Everclear or the highest proof clear booze I could find) and see what kind of tar came out.
Keep in mind also that the red bottle of ISO-HEET "gas line antifreeze" at the gas station/truck stop is 100% isopropyl alcohol if you're in the States. You don't really need pharmaceutical grade IPA for a tar extraction...
Edited by Phineas_Carmichael, 25 April 2021 - 02:26 AM.