ASTM D2511: Thermal Shock Sensitivity (Dry Film Lubricant)

ASTM D2511 Thermal Shock Sensitivity of Solid Film Lubricants

Machines operating in cold environments may be exposed to very low temperatures while at rest, and very high temperatures while in service. Effectively lubricating these machines may be difficult due to changes in grease or oil viscosity with temperature. Solid film lubricants are designed to durably adhere to metal surfaces under extreme temperature conditions and may be a good alternative to traditional lubricants. This test determines the adhesion of solid film lubricants to metal substrates during rapid and extreme temperature changes.

The test panels are heated to the initial hot test temperature (260ºC) for three hours, removed and immediately placed at the cold temperature (-54ºC) for three hours. The panels are then observed. Any changes in appearance, including blistering, flaking, cracking or film softening are reported.