Case Studies
Protecting the Internal Surfaces of a Roller Table Gear with Chesterton ARC S5
Challenge
Problem
Condensation forms inside the gear reducer when heated plates pass through, causing corrosion. Rust-contaminated moisture degrades the oil, requiring replacement. To prevent this, rust was removed during annual maintenance using grinders.
Root Cause
- Lack of a long-term corrosion protection solution
Goal
- Prevent corrosion and oil degradation
Severe corrosion observed on the gear reducer.
Solution
Recommendation
As the temperature rises to approximately 100 °C when rolled plates pass through, ARC S5 was selected. Surface preparation was carried out using Sponge-Jet #30.
Product surface preparation.

Results
The coating was applied in May 2022, and after 2 years and 7 months, no corrosion or oil degradation has been observed, with stable performance maintained. Application cost: ¥2,000,000
Previously, casing maintenance was carried out every year during the annual shutdown, requiring
8 personnel per day over a 10-day period.
Final results with ARC S5 coating applied.

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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.
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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.