Top 6 High-Temperature Greases for Industrial Equipment

Selecting the right high-temperature grease for industrial equipment is critical in environments where heat, load, and operating stress push lubrication systems to their limits. When standard greases fail, bleeding oil, hardening, or oxidizing—equipment downtime and component damage quickly follow.

Industrial sectors such as steel, cement, mining, power generation, and manufacturing are totally dependent on high-temperature greases to maintain bearing life, reduce wear, and ensure consistent performance under such an extreme condition. In this article, we will explore the top six high-temperature greases and explain where each type performs best and highlight the proven Rexol formulations used in demanding industrial applications.

What Makes a Grease Suitable for High-Temperature Applications?

A grease designed or formulated for high-temperature service must maintain structural stability and lubrication performance when exposed to elevated heat over long periods. Key performance factors included are:

• Effective oil retention at high temperatures
• High dropping point
• Mechanical stability under load
• Strong oxidation resistance
• Resistance to water, contaminants, and chemicals
• Mechanical stability under load

All types of grease do not handle the heat the same way. Different types of greases, including thickener type, base oil quality, and additive technology, all will play a major role in determining temperature capability. You can explore our latest article about select the right grease type.

1. Lithium Complex Grease – The Industrial Workhorse

High-temperature lithium complex grease remains one of the most widely used solutions across industrial sectors due to its balanced performance profile.

Technical profile

• Thickener: Lithium Complex
• Dropping point: >250 °C
• NLGI: 1 – 2
• Base oil: Mineral / Semi-synthetic

Recommended grades

• EP 220 → Standard bearings
• EP 460 → Heavy load / slow speed

Why does it work better?

Lithium complex greases offer:

• Compatibility with a wide range of bearing types
• Strong mechanical stability
• Dropping points typically above 250°C
• Good load-carrying and EP performance

Typical applications included are:

• Electric motor bearings
• Industrial fans and blowers
• Conveyor bearings
• General-purpose high-temperature lubrication

Rexol Lithium Complex EP 220 is most widely used for high-temperature bearing applications requiring both heat resistance and EP protection. Rexol Lithium Complex EP 460 is providing the increased film thickness and wear protection for heavier loads and slower speeds.

This grease type is also available for private label production under your own brand name.

2. Polyurea Grease – Long-Life High-Temperature Performance

Polyurea greases are often selected where long relubrication intervals and clean operation are on top.

Technical profile

• Thickener: Polyurea / Diurea
• Dropping point: >260 °C
• NLGI: 1.5 – 2
• Oxidation resistance: Excellent

Key Advantages are

• Naturally high dropping point
• Excellent thermal and oxidative stability
• Excellent bearing cleanliness
• Very low oil separation

Best Use Cases are

• Electric motor bearings
• Sealed-for-life applications
• High-speed bearings exposed to continuous heat

Rexol Polyurea Synthetic Grease is engineered for high-temperature, high-speed applications where re-greasing is difficult or expensive.

This grease type is also available for Private Label production under your own brand name.

3. High-Temperature EP Grease – When Heat and Load Combine

In many industrial environments, heat is only part of the challenge. Heavy loads, shock loading, and vibration require a high-temp EP grease formulation that can protect metal surfaces under stress.

Technical profile

• Thickener: Lithium Complex
• Additives: EP / AW
• NLGI: 1 – 2
• Base oil: High-viscosity mineral

Performance Characteristics

• Enhanced load-carrying capability
• Protection against scuffing and wear
• Stable lubrication film at elevated temperatures

Common Applications are

• Rolling mills
• Heavy conveyors
• Crushers and mills
• Construction and mining equipment

Rexol Lithium Complex EP 460 is specifically formulated for heavy-load, high-temperature applications where standard greases fail under pressure.

4. Calcium Sulfonate Complex Grease – Extreme Heat and Load Resistance

Calcium sulfonate complex grease is mostly used for its exceptional performance in different severe operating conditions.

Technical profile

• Thickener: Calcium Sulfonate Complex
• Dropping point: >300 °C
• NLGI: 1 – 2
• Load carrying: Excellent

Why Industry Uses It

• Very high dropping point (often above 300°C)
• Excellent load-carrying capacity
• Outstanding water resistance
• Strong corrosion protection

Ideal Applications

• Steel and metal processing
• High-temperature kilns
• Wet and corrosive environments
• Equipment exposed to water washout

Rexol’s Calcium Sulfonate Complex Grease range is suitable for industries that require both thermal stability and extreme pressure protection.

This grease type is also available for Private Label production under your own brand name.

5. Synthetic High-Temperature Grease – Consistency Under Extreme Conditions

Synthetic high-temperature greases are used when the operating temperatures are exceeding the limits of mineral oil-based products or when performance consistency is crucial.

Technical profile

• Base oil: PAO / Ester
• Thickener: Lithium Complex / Polyurea
• Operating range: Very wide
• Oxidation resistance: Excellent

Key Benefits are

• Reduced oil evaporation
• Wider operating temperature range
• Stable viscosity at high temperatures
• Excellent oxidation resistance

Typical Applications are

• Continuous high-temperature processes
• High-speed bearings
• Precision industrial equipment

Rexol Synthetic High-Temperature Grease formulations are designed for applications that require reliable lubrication beyond conventional temperature limits.

6. High-Temperature Grease for Bearings – Application-Specific Formulations

Bearings are among the most temperature-sensitive components in industrial equipment. Using the right high temp grease for bearings can significantly extend service life.

What Matters Most

• Correct base oil viscosity
• Compatible thickener system
• Resistance to hardening and oil bleed
• Stable performance over extended cycles

Rexol offers multiple bearing-specific solutions, including:

• Lithium Complex EP 220 for general high-temp bearings
• Polyurea Synthetic for electric motors
• EP 460 grades for heavily loaded bearings

Each formulation is matched to bearing speed, load, and operating temperature.

Choosing the Right High-Temperature Grease for Your Equipment

When selecting a high-temperature grease for industrial equipment, consider the following factors:

• Maximum and continuous operating temperature
• Bearing speed and load conditions
• Exposure to water or contaminants
• Relubrication interval requirements
• Equipment manufacturer recommendations

No single grease fits all applications. In many plants, multiple grease types are used across different assets to ensure optimal performance.

Private Label High-Temperature Grease Solutions

Many industrial distributors and lubricant brands are choosing to market high-temperature greases under their own brand name. Rexol supports private label projects with different greases:

• Lithium Complex EP 220 & EP 460
• Polyurea and synthetic grease ranges
• Calcium sulfonate complex formulations
• Flexible packaging and MOQs
• Export-ready production support

Learn more about our capabilities on the main Private Label Grease page, where you can explore how Rexol is supporting a global private label partner.

Final Thoughts

High-temperature environments place an extreme demand on lubrication systems. Selecting the right grease, whether it is lithium complex, polyurea, synthetic, or calcium sulfonate, directly impacts equipment reliability, maintenance costs, and operational uptime.

Industrial users can significantly reduce failures and extend component life by understanding grease chemistry and matching it to the real operating conditions. With Rexol’s proven high-temperature grease portfolio and private label expertise, businesses can confidently deliver reliable lubrication solutions under their own brand without any compromise.

If you’re evaluating high-temperature grease options or planning to start your own grease brand, Rexol is ready to support you with technical guidance and industry-proven formulations and designs.