>>96395432
Nah you don't even need to soak, just put the model in IPA and turn it on, it'll clean it to bare plastic in a couple minutes. Some primers are harder to clean, for example mr surfacer and citadel rattlecans come off extremely quickly but e.g. Vallejos surface primer took a lot longer and I still had to scrub it a bit. An anon in /wip/ had a nice hack in that he didn't just fill the cleaner with ipa but instead poured it in a plastic baggie along with his mini and put that in the cleaner instead.
It's a really nice hack for stripping your minis and you can get a small ultrasonic cleaner for like $10 on ali/temu