We use mineral spirits daily in one of our parts washers here in the shop. It is not the same as Acrysol. Doesn't smell the same, doesn't look the same, doesn't dry the same, doesn't clean the same. Since we go through a fair amount of Acrysol, I thought I'd try it in the parts cleaner too. Won't make that mistake again. I've also sourced several substitutes for Acrysol over the years due to rising cost of genuine Kent Acrysol, and although you can find "similar" chemical mixes, none are quite the same.