Tests Show MOLYKOTE HP-300 Grease Meets Stringent Hydrogen Purity Standards

Jan. 23, 2025
DuPont has claimed the HP-300 grease released under its MOLYKOTE brand is compliant with some of the most strict hydrogen purity standards.

After extensive testing, DuPont has claimed the HP-300 grease released under its MOLYKOTE brand is compliant with some of the most strict hydrogen purity standards, according to a press release.

In partnership with HyCentA Research GmbH, MOLYKOTE has developed a lubricant testing protocol that it says meets the hydrogen purity standards of ISO 14687:2019.

After several weeks of exposing the grease to hydrogen at a pressure of 700 bar, a hydrogen gas and particle contamination analysis was performed. It showed no significant contamination of the hydrogen by the grease, making it compatible with hydrogen applications like fuel cell stacks.

Lubricants that don’t contaminate hydrogen are critical in the advance of hydrogen technologies, DuPont noted. In transportation applications, certain impurities with concentrations as low as 4 parts per billion could jeopardize the integrity of a fuel cell. 

In addition, pure hydrogen can be easily contaminated by anything it comes into contact with, making it all the more important for materials such as lubricants to undergo testing for the sake of safety and performance.

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