Outgassing.

Solvent inks sink into the film and keep giving off vapour for hours or days after the print leaves the machine, long after the surface is dry to the touch. Media guidance treats dry-to-touch as no evidence at all: hang prints vertically or wind them loosely, keep them off the floor in a controlled room, and hold them for the dwell the media maker states, which is longer for film that will be conformed into a vehicle recess than for flat work. If solvent can still be smelled, it is not finished. Laminate or trim over trapped solvent and it has nowhere to go, so bubbles, edge curl and adhesive failure surface on the customer's vehicle after install, and the reprint comes with a second fitting.