Rubber co-extrusion is when rubber and plastic (or rubber) are mixed through specific processing methods. Blends combine the properties of both rubber and plastic (or other rubber). The two materials co-extruded still maintain their respective characteristics. The main purposes of Rubber co-extrusion are as follows:

1.Improve the performance of rubber.
2.Improve the processing performance of synthetic rubber.
3.Reduce costs.
4.Determine the reasonable mixing process method.
5.Development of new polymer materials.