Learn More about Copper Corrosion Testing
A copper corrosion test, also known as ASTM method D-4048, is performed to ensure that a grease will protect the metal surfaces it comes in contact with over time. This test is often performed for automotive companies to determine how suitable a lubricant is for lubricating parts containing copper or copper alloys. This test is performed in order to avoid premature application failure from corrosion.
While this test does not measure the ability of the grease to inhibit copper corrosion caused by factors other than the grease itself nor does it measure the stability of the grease in the presence of copper, it does ensure that a grease will protect the metal surface of your application from corrosion.
Nye released the Copper Corrosion video in the “Lubricant Testing 101” series. This video describes in detail the copper corrosion test. To learn how the test is performed on our lubricants, watch the video.
