According to one of my contacts at an intaglio printing operation, they are
using a de-sulfurized kerosene to clean their presses. I think I can obtain a
copy of an MSDS for you if necessary. Since it is a kerosene product, its
vapor pressure should be lower than some of the traditional washes on the
market, which should reduce emissions. I will try to contact Sun and speak
with one of their experts on the subject.