Cure assignment is the specification of a vulcanization cycle able to produce a given tire with optimum properties while using the curing equipment in the most efficient way. Vulcanization cycle is divided into sub-steps related to internal (from bladder side) and external (mold side) heating media.Pressure On state of cure represents the amount of vulcanization generated during the stay of a tire in the curing mold, namely between the closing of the mold and the release of the pressure in the bladder.Note: the tire still cures when released from the mold.Blow Point time is the Pressure On time of the shortest cure cycle that has not developed blows or porosity. This is the minimum time the tire has to stay inside the mold. Blows or pores can develop, if at pressure release the contained vapors (water, low-boiling-point oil fractions) can expand the undercured soft rubber. At a certain state of cure, the rubber has a sufficiently high modulus not to develop pores.