When i was in the screen printing industry, the company also had a litho printer..
from memory, as i used to have to get buckets full of solvents from the chemical shed for cleaning screens
Toluene was used for cleaning the rollers on the litho machine. they had many big drums, maybe i should pay them a visit and see if i still know anyone who works there.
2 bucks a L!!! anyone interested in a group by