To help formulators meet increasing demand for high lubricant performance and long product life, we offer a full line of Esterex™ esters, which includes adipate, neopolyol, phthalate and trimellitate esters. Esterex esters are well suited for a wide range of applications, including automotive, textile, industrial, aviation, turbine and compressor lubricants.

Esterex esters can be used as a stand-alone base stock or in combination with other fluids. Their compatibility with polyalphaolefin (PAO) and other base stocks available from ExxonMobil Chemical offers another solution for your formulation challenges. Most Esterex esters are inherently biodegradable,* making them an appropriate choice for applications in which a lubricant is in contact with the environment.

To measure the solvency advantages of using Esterex esters in lubricant formulations, we used ASTM D611 (Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents). Compared to a 6 cSt and a 10 cSt PAO base stock, 5 cSt polyol and adipate esters demonstrate increased solvency.

In this chart, we see a comparison between four types of esters, measuring thermal-oxidative stability.

This chart presents the results of two tests that measure biodegradability. It includes six types of esters along with mineral oil.