Originally Posted by
cyccommute
How long the cassettes can sit in mineral spirits depends on the mineral spirits. If the mineral spirits are the "green" type which are often called odorless mineral spirits as well. But the "green" type is water based and salts on cassettes could cause problems with that type only.
Green mineral spirits are an oxymoron. There is no such thing. There are green mineral spirits substitutes or alternatives, that are mislabeled in that the words substitute or alternative or replacement are missing, or hidden in small print, but that doesn't make them mineral spirits any more than artificial chocolate flavor is chocolate.
While
solvent can mean almost anything, mineral spirits has always had, and for me, will always have a specific meaning. BTW, the bastardization of the term mineral spirits is one of the main reasons that I now usually recommend naphtha. At least when it says naphtha on the can, you don't have to read the fine print to know what's really inside.