Servo RUBBESS 46 is a paraffin oil used in rubber processing to produce natural and synthetic rubber products. The process of its synthesis is done by using base stocks with low sulphur concentration extracted from solvents by high refining. It makes it easier to attain lower milling temperature, shorter milling time and lesser power consumption and impart low heat build-up ability and good air retention property. It is suitable for use in almost all automotive tube manufacturing units for compounding of butyl rubber for the procession making the crude product stronger by improving elongation and tearing strength and enhancing ageing properties in the finished product.