Originally Posted by ivan_yulaev
How about brake cleaner? You can get it at auto stores. It's a spray, dissolves stuff, and evaporates leaving no residue...
Brake cleaner might work but it is far more hazardous than other solvents. Brake cleaner contains chlorinated hydrocarbons like those use in dry cleaning. They may be linked to cancers and are difficult to dispose of. Start with simple stuff and work up to more complex mixtures if necessary.