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Author: Admin | 2025-04-28
Be incompatible with other types of thickeners (or other polyurea greases). These challenges can be overcome, particularly when greases are formulated by experienced experts to provide superior protection for specific applications.Aluminum complex greases offer excellent performance over a wide range of temperatures, with high-temperature performance similar to lithium complex greases and good low-temperature performance. The thickener is also reversible, meaning that it will re-form after brief excursions above its melting point. Aluminum complex greases also offer good water resistance and can be formulated to meet NSF H1 for use in incidental food contact applications. Each grease thickener has unique properties, which means that not all thickeners and their subsequent finished greases are suitable for all applications and environments.For example, for lower-temperature applications, calcium sulfonate greases may not be as effective due to their need for a higher thickener content to reach a specific consistency. In contrast, aluminum complex thickeners are well suited for low-temperature use, while polyurea greases may be selected over lithium or calcium sulfonate greases for high-temperature or long-life applications due to their naturally enhanced oxidation stability.Consideration also needs to be given to where the greases will be used. For example, calcium sulfonate complex and aluminum complex grease thickeners can be used to formulate greases suitable for incidental food contact for use in food manufacturing applications. Aluminum complex greases are suited for use in off-road applications like heavy-duty mining equipment, including open gear greases.However, it’s important to be aware that through good formulation and additive systems, greases can be designed for multiple applications. A good example of this is calcium sulfonate thickened PEERLESS™ LLG. A multi-use grease, it offers premium performance and the ability to reduce operating costs in high-temperature or wet operating conditions. To provide high-performance greases for a wide range of applications, Petro-Canada Lubricants uses several grease thickeners including lithium and lithium complex, calcium sulfonate complex, polyurea and aluminum complex.This allows products to be formulated to deliver superior protection and lubrication in a range of operating environments. Leveraging the properties of each thickener where appropriate, Petro-Canada Lubricants greases can contribute to a lower total cost of ownership.When selecting a grease or grease thickener, it’s important to look for relevant industry certifications. For example, PEERLESS™ LLG, OG1, OG2 and OG2 Red meet the National Lubricating Grease Institute’s (NLGI’s) GC-LB certification (the internationally recognized standard grease specification for grease and bearing manufacturers), while PEERLESS™ OG2 Red and LLG
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