Process Oils

also known as process aids, plasticizers, or functional fluids, are a type of specialized oil used in various industries, including the rubber industry. These oils are specifically designed to enhance the processing and performance of rubber and other elastomers. They serve several important functions in rubber processing and can influence the final properties of rubber products. Here’s an overview of what process oils are, how they are used in the rubber industry, and some of their applications.

In the rubber industry, process oils serve several important functions:



Natural rubber is known for its excellent elasticity, which allows it to return to its original shape after being stretched.

Improving Flowability:

Process oils enhance the flow properties of the rubber compound during processing. This ensures that the rubber can be effectively molded or extruded into its desired shape.

Heat Dissipation:

In certain rubber applications, process oils can improve heat dissipation, helping to prevent excessive heat build-up during vulcanization and use.

Enhancing Mechanical Properties

Process oils can be chosen to optimize specific mechanical properties, such as tensile strength, flexibility, and elongation, depending on the requirements of the final rubber product.

Reducing Hysteresis:

Hysteresis loss is a phenomenon where energy is lost as heat during the deformation and recovery of rubber. Process oils can help reduce hysteresis and improve the resilience of rubber products, such as in tire manufacturing.

Common Uses
of Process Oils in the Rubber Industry:

Tires: Process oils are commonly used in tire manufacturing to enhance the processability of rubber compounds and improve tire performance, such as rolling resistance and wear resistance.

Hoses and Belts: Rubber hoses, belts, and conveyor systems often incorporate process oils to improve flexibility and durability.

Seals and Gaskets: Process oils are used in the production of rubber seals and gaskets to ensure proper molding and sealing properties.

Footwear: Rubber shoe soles and components may include process oils to achieve the desired flexibility and wear resistance.

Automotive Parts: Various rubber components in automotive applications, such as engine mounts and bushings, may benefit from the use of process oils to optimize their properties.

Industrial Rubber Products: Process oils are used in a wide range of industrial rubber products, including molded goods, grommets, and custom rubber parts.

The choice of the specific process oil and its concentration in a rubber formulation depends on the desired characteristics of the final product and the requirements of the manufacturing process. Manufacturers carefully select process oils to achieve the best balance of properties for their specific applications.