Smearing

One of the variations of the ex­trusion process for coating wires with plastic. The nozzle lies back from the die and the die itself has a bearing surface called “land length.” The wire and PVC meet at the exit point of the nozzle where they are formed under pressure, drawn through the land length of the die together and emerge at the die exit. This method gives greater adhesion than tubing-on, due to the pressure created by the land length of the die.