AeroShell Grease 5

AeroShell Grease 5 is a mineral-based aviation grease formulated for high-speed and high-temperature applications. It features a clay thickener and a robust additive system that provides excellent oxidation stability, corrosion protection, and water resistance.

This grease is ideal for wheel bearings, magnetos, generators, and starters – components exposed to both heat and mechanical stress. Its stability and load-carrying ability make it well-suited for high-speed bearings in aircraft and engine accessories operating under demanding conditions.

AeroShell Grease 5 performs reliably within a temperature range of 0°F to 300°F (-18°C to 149°C), maintaining consistent lubrication properties in both moderate cold and extreme heat.

The grease is composed of a mineral base oil and a non-melting clay thickener, offering high thermal stability and resistance to softening at elevated temperatures. This structure allows the grease to maintain its lubricating film even under heavy loads.

Its formulation is specifically designed to handle high-speed rotation, mechanical stress, and elevated temperatures typical of wheel bearing operation. The grease’s ability to resist oxidation and water washout ensures long-term protection and smooth bearing performance.

Yes. AeroShell Grease 5 is frequently used in helicopter bearings and accessories that operate under high-speed or high-heat conditions. Its thermal stability and oxidation resistance make it a dependable choice for rotary-wing applications.

While AeroShell Grease 5 can operate in temperatures as low as -18°C, it is not optimized for extremely cold conditions. For operations in sub-arctic or high-altitude environments, lower-temperature greases such as AeroShell Grease 6 or 33 are generally recommended.

It exhibits excellent resistance to both water and oxidation. In testing, water washout at 41°C is limited to only 4.5% mass loss, while oxidation pressure loss after 100 hours at 99°C measures just 5 PSI – indicating outstanding long-term stability.

Yes. It passes the ASTM D1743 rust test and copper corrosion testing, ensuring metal surfaces remain protected even in humid or marine environments. These properties make it a dependable grease for aircraft exposed to varying weather conditions.

Mixing greases with different base oils or thickening agents is not recommended. When switching to AeroShell 5, existing grease should be thoroughly cleaned out to prevent chemical incompatibility or degradation of lubrication performance.

Clay-thickened greases do not melt, even at high operating temperatures. This makes AeroShell 5 particularly effective in high-speed environments where conventional soap-thickened greases might liquefy and lose lubricity.

It meets and exceeds legacy military and aviation standards, including MIL-G-3545C, DTD.878A, and DCSEA 359/A, as well as NATO Code G-359 and Joint Service Designation XG-277. These certifications affirm its suitability for demanding aircraft maintenance applications.

AeroShell Grease 5 has a drop point exceeding 550°F (288°C), indicating excellent high-temperature resistance and structural stability under thermal stress.

Yes. When used as directed, AeroShell 5 poses no significant health or safety risks. Used grease should be handled with gloves, disposed of through authorized collection points, and kept away from drains, soil, and water sources.