That type of stuff has it's benefits but as you mention they have their downfalls . I've tried to get away from any flammable liquids in the shop because of the fire risk and also the stink . I had varsol in my parts cleaner for a fair while but I now fill it with water and a heavy amount of simply green extreme aircraft cleaner which does a great job and is safe to dispose of . It also has corrosion protection and my parts cleaner isn't too bad with rust , there is a bit though