Where calcium sulfonate complex fits
It is often selected for water exposure, corrosion risk, shock load, and heavy-duty service because of its strong structural and protective properties.
Where polyurea fits
Polyurea is commonly used in electric motors and long-life bearings where oxidation stability, low noise, and suitable high-speed behavior are important.
Do not choose by chemistry alone
Compare base-oil viscosity, NLGI grade, speed, load, temperature, seals, relubrication strategy, and compatibility. Purge old grease if compatibility is uncertain.