Most of the greases used today are based on petroleum lubricating oil.
<Synthetic oil based grease>
Synthetic oil grease is used for certain conditions where conventional mineral oil grease fails (in low-temperature property, heat resistance, low-torque property or longer life). Synthetic greases come in many different characteristics depending on the type of the oil used.
Provides excellent lubricity; Usable over a wide temperature range from very low to very high; Tends to swell rubber.
Hydrocarbon oil-based grease
Usable over a wide temperature range from very low to very high; Good rubber/plastic compatibility (because of the absence of polar group in the hydrocarbon molecular structure) except natural rubber and EPDM.
Polyethylene glycol oil-based grease
Optimum for applications in contact with rubber because of little adverse effect on rubber including natural rubber and EPDM.
Phenyl ether oil-based grease
Optimum for automotive electrical components for its excellent thermo-oxidative stability; Good radiation resistance.
Silicone oil-based grease
Excellent thermo-oxidative stability and usable over a wide temperature range; Poor steel-on-steel lubricity.
Fluorinated oil-based grease
Offers the best thermo-oxidative stability and high chemical resistance of all existing greases, but has the drawback of being very expensive. Optimal for chemical plants, high-temperature drying ovens and copying machine heat rollers.
TOP＞Basic Knowledge About Grease＞Classification and Characteristics of Grease＞Classification By Base Oil Types
