No solvent. No evaporation. UV ink cures the instant a lamp hits it. Paper, plastic, metal, foil, it prints. Prepolymers, monomers, photoinitiators, pigment loading, curing kinetics, substrate compatibility. For when conventional ink cannot handle the job.

Fountain solution keeps the non-image areas clean while the ink does its job. Get the pH wrong, the conductivity wrong, the alcohol ratio wrong, the press run fights you. Formulation, chemistry, alcohol-free options, dosing, troubleshooting. The silent half of offset printing.

Offset ink is not liquid. It is a paste, thick and tacky, built for the split-second jump from plate to blanket to paper. Oil and water do not mix. That is the whole principle. Chemistry, classification, key properties, selection, storage. Everything to spec the right ink.