D-A Open Gear All Seasons™ provides maximum protection to open gears, racks and pinions, and slides on large draglines and shovels. The maximum protection is achieved by formulating with a combination of high viscosity oils, thermal plasticizing hydrocarbon resins, and polymers that have been specifically selected to provide the formation of tenacious lubricant film that adheres to the mating surfaces. The lubricant does not squeeze out, but the film is soft enough and stays pliable over time, minimizing lubricant build-up in the roots of the gear tooth. This combination of high viscosity oils, resins, and polymers provide excellent water resistance.