In Singapore, it’s really hard to get a decent amount of isopropyl alcohol cheaply. The variety they sell in pharmacy are only 70% type and it’s really expensive.
Here’s an alternative I’m using, just regular (oil based) paint thinner (sold in very ghetto looking beer bottles in Singapore). Not only does it clean the part very well, it’s cheap and works faster. Parts I clean using this is tack-free in 1 day after air drying in the shade.
Because it’s rather potent. I only use half the recommended cleaning time for isopropyl alcohol.** 1 min shake and 5 min soak.**
Also, you can’t use the containers that Formlabs provided since thinner is rather strong. I got a glass container for soaking my parts. Hope this helps!