Krytox GPL 226 High-Performance Grease for Bearings and Electric Motors

1. Purpose of Development and Production

Krytox GPL 226 was developed to address key challenges such as lubrication failure, accelerated corrosion, and frequent maintenance under extreme operating conditions. By utilizing a PFPE base oil combined with a PTFE thickener system, this grease maintains outstanding performance in high-temperature, oxidative, and chemically aggressive environments. As a result, it significantly extends equipment service life and reduces maintenance costs.

In addition, this grease is specifically designed for oxygen systems, safety-critical environments, and sealed bearings. Its nonflammability and chemical inertness effectively eliminate potential safety risks associated with conventional lubricants.

2. Key Features

Krytox GPL 226 offers the following core performance advantages:

(1).Excellent high-temperature resistance: Operating temperature range from -36°C to 260°C, with the ability to withstand even higher temperatures for short periods.

(2).Outstanding chemical stability: Inert to most acids, bases, and solvents, ensuring compatibility with a wide range of harsh media.

(3).Corrosion protection and anti-wear performance: Formulated with anti-corrosion and anti-wear properties to protect metal surfaces effectively.

(4).High safety level: Nonflammable and non-volatile, suitable for use in oxygen-rich and hazardous environments.

(5).Extended service life: Low volatility and stable lubrication film significantly extend relubrication intervals.

3. Typical Technical Parameters

Krytox GPL 226 is classified as an NLGI Grade 2 grease, with the following typical properties:

Base oil type: PFPE (Perfluoropolyether)

Thickener: PTFE

Appearance: White grease

Kinematic viscosity (40°C): approx. 240–243 cSt

Operating temperature range: -36°C to 260°C

Density: approx. 1.95 g/cm³

Coefficient of friction: approx. 0.11

Four-ball wear scar: approx. 0.4 mm

These parameters demonstrate its ability to maintain stable lubrication performance under high temperature, heavy load, and harsh conditions.

4. Application Fields

Thanks to its superior performance, Krytox GPL 226 is widely used across multiple high-end industrial sectors:

Bearings and electric motors: Ideal for sealed bearings and high-temperature motor applications, extending service life.

Chemical processing equipment: Suitable for valves, pumps, and sealing systems exposed to corrosive chemicals.

Aerospace and semiconductor industries: Provides stable lubrication in extreme environments to ensure reliable operation.

Food and clean industries: Certain grades meet NSF H1 requirements, making them suitable for applications with strict safety standards.

Energy and oil & gas sector: Delivers long-lasting corrosion protection and lubrication in humid, saline, and harsh environments.

Overall, Krytox GPL 226, as a high-performance PFPE-based grease, effectively overcomes the limitations of conventional lubricants in extreme conditions.

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