Rubber oil is a softener, it can have good compatibility and affinity with rubber, in the process of improving rubber processing, can reduce the consumption of mixing power, promote the uniform dispersion of various auxiliary materials, improve the elongation of vulcanized rubber, resilience and other process properties. In the actual use of rubber oil, because of different uses and different industries, there are many specific differences in the physical and chemical performance requirements of rubber oil, so many names and grades are derived. For example, according to the difference in molecular structure and composition of mineral oil itself, it is divided into paraffin base rubber oil, naphthenic rubber oil, aromatic base rubber oil and so on. Rubber oil has petroleum rubber oil, pine oil rubber oil, coal tar rubber oil, fat oil rubber oil four categories, petroleum rubber oil is the largest storage, the most easy to process, and plasticizing effect is good, low cost.