Description
Mobilgrease XHP 221
Product Description
Mobilgrease XHP 221 is a premium calcium sulfonate complex, high-performance industrial grease (NLGI 2) designed for severe operating conditions involving water exposure, heavy loads, and elevated temperatures.
It provides excellent mechanical stability, strong adhesion, and outstanding resistance to water washout and corrosion. The calcium sulfonate thickener system also contributes to inherent EP (extreme pressure) performance, making it suitable for demanding industrial and marine environments.
This grease is commonly used where long-life lubrication and high resistance to contamination are required.
Performance Standards / Specifications
- DIN 51825: KPF1-2G-20 (typical classification)
- Calcium sulfonate complex thickener system
- High EP performance (no additional MoS₂ required)
- Suitable for wet and corrosive environments
- Industrial, marine, and heavy-duty OEM applications
Typical Properties
| Property | Method | Value |
|---|---|---|
| NLGI Grade | ASTM D217 | 1.5–2 |
| Thickener Type | - | Calcium sulfonate complex |
| Base Oil Viscosity @ 40°C | ASTM D445 | ~220 mm²/s |
| Base Oil Viscosity Index | ASTM D2270 | ~90–100 |
| Dropping Point | ASTM D2265 | >308°C |
| Four-Ball Weld Load | ASTM D2596 | ~500 kgf |
| Water Washout | ASTM D1264 | ~1% loss (very low) |
| Rust Protection | ASTM D1743 / D6138 | Pass |
| Oil Separation | ASTM D6184 | Very low |
| Copper Corrosion | ASTM D4048 | 1A |
| Timken OK Load | ASTM D2509 | ~55 kg |
Key Benefits
- Excellent resistance to water washout and spray-off
- Superior corrosion protection in wet environments
- High load carrying (EP) capability
- Strong mechanical stability under vibration and shear
- Excellent adhesion to metal surfaces
- Long service life in harsh operating conditions
Applications
- Industrial bearings in wet and corrosive environments
- Steel mills and mining equipment
- Paper mills (wet-end bearings)
- Marine and offshore equipment
- Heavy-duty rolling element bearings
- High-load industrial machinery exposed to water or contamination
Storage Information
Store in a cool, dry place away from direct sunlight. Keep containers tightly sealed to avoid contamination.
