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Reducing corrosion in ball mill pinion


A newly arrived ball mill pinion was prone to corrosion and moisture due to the rugged environment in the mining industry. It needed to have protection while it was in storage for emergency replacements. The manual removal of the corrosion caused long hours of delay.


The Chesterton 740 Heavy Duty Rust Guard was applied to the pinion of the newly arrived ball mill and during storage there was no trace of corrosion prior to installation.

The Chesterton 740 Heavy Duty Guard has the following characteristics:

  • Easy to apply – easy to remove
  • Self-healing if scratched
  • Provides up to two years of corrosion protection under sheltered outdoor condition
  • Withstands 2000 hours’ accelerated corrosion test; ASTM B 117, 5% salt fog test


The Chesterton 740 Heavy Duty Rust Guard is an unique polymer modified wax, corrosionpreventative coating that provides heavyduty metal protection without critical surface preparation, for areas constantly exposed to humidity and corrosive fumes.

Chesterton 740 Heavy Duty Rust Guard

About us

Chesterton® is a world leader in helping process industry companies and manufacturers improve the reliability and efficiency of their rotating, stationary, and fluid power equipment platforms. We are known across a wide range of industries for our award-winning pump and valve sealing solutions, applications expertise, equipment maintenance and wear-prevention products, and knowledgeable hands-on local service. Chesterton product range includes mechanical seals, packing and gaskets, industrial lubricants and coatings.

® Registered trademark owned by A.W. Chesterton Company

APAC0052.  Issued 10/2022.

Technical data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. Chesterton Company disclaims all warranties expressed or implied, including warranties of merchantability and fitness for a particular purpose. Liability, if any, is limited to product replacement only. Any images contained herein are for general illustrative or aesthetic purposes only and are not intended to convey any instructional, safety, handling, or usage information or advice respecting any product or equipment. Please refer to relevant Safety Data Sheets, Product Data Sheets, and/or Product Labels for safe use, storage, handling, and disposal of products, or consult with your local Chesterton sales representative.

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