In the blown and cast film processes, the time scales for stretching and quenching the polymer melt in the region exit the die differ. These time scales are known to affect the physical and optical properties of the film, but little attention has been given to their effect on adhesion in coextrusion. In coextrusion, new interfacial area is created, bonds may be formed or broken and stress is generated as the melt is drawn and quenched. These influence the peel strength between layers. Previous work shows that increasing the process time, defined as the time between the die exit and the point where the polymer begins to freeze (near the frost line for blown film and at the chill roll for cast film), increases peel strength. The magnitude of the peel strength and its change with process time differ in cast and blown film. Experiments and models are introduced to determine the time scales in coextrusion blown and cast film that help explain differences in peel strength behavior. Appropriate transformation of the data allows the peel strength results to collapse onto a master time curve for both processes.