Transfer molding is similar to compression molding, but has a transfer system on the top of the mold that feeds the rubber into cavities when the press is closed. The major difference between compression and transfer is that the uncured rubber is placed in a pot / ram combination built into the top of the mold. When pressure is applied by the closing of the press, the ram “transfers” the uncured rubber through small holes (sprues) in the pot directly into the cavities. The balance of the process is the same as is found in compression molding, except that, cure time is reduced due to preheating the rubber during the transfer process; finished parts are more consistent as the mold is closed prior to the transfer; and labor is reduced as preforms do not need to be loaded into the mold.