It is delusory to assume that if one has survived so far, all danger is past. The odds of sickness and death increase with each whiff, which kills more cells. Cells die and are replaced all the time, of course, but the more often this happens, the more likely one of them will go awry and figure out how to evade the normal cell death routine. Having a survival advantage over normal cells, that cell will replicate more successfully and rapidly proliferate. Chronic occupational exposure to many solvents can cause permanent brain damage, with symptoms including loss of memory, behavioral changes, fatigue, spasticity, decreased intelligence, slower reflexes, poor hand-eye coordination, etc.
Solvents can also attack other organ systems besides the nervous system.
In particular, turpentine can damage the kidneys, toluene and chlorinated hydrocarbons can affect the liver, and methylene chloride can affect the heart. With this cleanser, more scrubbing is required, and sometimes a supplementary treatment of the copperplate with sodium hydroxide is necessary. See Cleaning printing plates and brushes with VCA , by Sytze Folkertsma, Peter Sincovitz and Ad Stijnman, Printmaking Today, Vol. It removes all the ink from plates, rollers, and inking slabs in a completely non-toxic way. VCA is non-volatile, with none of the toxic fumes that come from organic solvents.