Aluminum Complex Grease is a high-performance, premium-grade lubricating grease formulated using aluminum complex soap thickeners, high-viscosity mineral or synthetic base oils, and a carefully balanced additive system.
Unlike conventional aluminum soap greases, aluminum complex greases incorporate complexing agents that significantly enhance dropping point, thermal stability, mechanical strength, and water resistance. This makes them ideal for extreme operating environments involving high temperatures, heavy loads, water exposure, vibration, and long service intervals.
Due to excellent adhesion and resistance to washout, aluminum complex greases are widely used in industrial, automotive, marine, construction, and food-processing equipment.
Composition & Manufacturing
Base Oil
High-quality mineral oil, synthetic oil (PAO), or food-grade white oil with base oil viscosity typically between 100–460 cSt @ 40°C.
Base oil selection influences load-carrying capacity, film strength, oxidation resistance, and low-temperature pumpability.
Thickener – Aluminum Complex Soap
Aluminum soaps reacted with complexing acids (such as benzoic or acetic derivatives) form a stable complex structure providing:
✔ High dropping point (>250°C)
✔ Excellent water resistance
✔ Strong mechanical stability
✔ Superior adhesion to metal surfaces
Additive System
Advanced additives may include anti-wear (AW), extreme pressure (EP), rust & corrosion inhibitors, oxidation inhibitors, tackifiers, and food-grade additives for NSF H1 formulations.
Key Performance Characteristics
Exceptional Water & Moisture Resistance
Maintains consistency under water, steam, and salt spray exposure. Ideal for marine and wash-down environments.
High Dropping Point & Thermal Stability
Dropping point typically between 250–300°C, suitable for sustained high-temperature bearing operation.
Excellent Mechanical & Shear Stability
Resists softening under vibration and high shear. Minimal oil separation during long service life.
Superior Adhesion
Tacky nature allows grease to stay in place under shock loads and centrifugal forces.
Rust & Corrosion Protection
Protects metal surfaces in humid, coastal, and chemically aggressive environments.
Wide Operating Temperature Range
Effective from –20°C to +180°C, with short-term peak capability up to 200°C.
Typical Mechanical & Physical Properties
| Property | Typical Range / Description |
|---|---|
| Appearance | Smooth, buttery, slightly tacky |
| Thickener Type | Aluminum Complex |
| NLGI Grades | 0, 1, 2, 3 |
| Most Common Grade | NLGI 2 |
| Dropping Point | 250°C – 300°C |
| Worked Penetration (NLGI 2) | 265 – 295 |
| Base Oil Viscosity @ 40°C | 100 – 460 cSt |
| Water Washout @ 80°C | Very Low (2 – 5%) |
| Operating Temperature | –20°C to +180°C |
| Short-Term Peak Temp | Up to 200°C |
| Rust Protection (ASTM D1743) | Pass |
Aluminum Complex Grease vs Other Greases
| Feature | Aluminum Complex | Lithium | Calcium |
|---|---|---|---|
| Dropping Point | Very High | High | Low |
| Water Resistance | Excellent | Good | Excellent |
| Mechanical Stability | Excellent | Very Good | Good |
| Adhesion | Excellent | Moderate | High |
| Temperature Capability | High | Medium-High | Low |
Available Grades & Variants
✔ Standard Aluminum Complex Grease – industrial & automotive use
✔ EP Aluminum Complex Grease – heavy and shock loads
✔ Synthetic Aluminum Complex Grease – PAO-based, extended life
✔ Food-Grade Aluminum Complex Grease (NSF H1)
Packaging Options
Cartridges: 400 g / 500 g
Small packs: 1 kg, 2 kg, 5 kg
Buckets: 18 kg, 20 kg, 25 kg
Drums: 180 kg
Bulk & customized OEM packaging available
Applications
Industrial
Bearings, conveyors, motors, water treatment, textile & paper machinery
Automotive & Heavy Equipment
Wheel bearings, chassis, construction & mining equipment
Marine & Wet Environments
Boat trailers, offshore machinery, dock equipment
Food-Grade Applications (H1)
Food processing, packaging machinery, pharmaceutical equipment
Advantages
✔ Excellent water resistance
✔ Very high dropping point
✔ Strong adhesion & stay-put behavior
✔ Superior corrosion protection
✔ Long relubrication intervals
Limitations & Considerations
Higher cost than calcium or simple lithium greases. Compatibility should be verified before mixing with other grease types.