OVERVIEW: Chemcote was tasked with restoring a 40-year-old air receiver in a C4 environment. Its outdated design, particularly the vertically locked legs, made access to critical areas challenging. To address these obstacles, Chemcote implemented an innovative sealing and coating solution, ensuring the tank’s functionality and extending its service life.
INDUSTRY
ENVIRONMENT
C4 environment
SUBSTRATE
Steel
CHALLENGE
The air receiver’s design restricted access to the backside and vessel shell, complicating surface preparation and coating application. Limited internal access required specialized techniques for effective application.
SCOPE
Chemcote conducted a comprehensive surface preparation and coating process by removing contaminants through degreasing and hot washing to ensure a clean surface. Abrasive blasting was then carried out, achieving a minimum surface profile of 50µm. To protect against corrosion, two coats of RL 500PF were applied. Severely corroded areas received additional attention with strip coating and the application of RA 500M. The process was completed with a 100µm topcoat of RC 500GTC B25 Aqua Blue, providing both durability and an aesthetically pleasing finish.
PRODUCTS
Epo – chem™ RL 500PF: Applied to internal base and externals for corrosion protection.
Epo-chem™ RC 500GTC: Used as the final topcoat for additional durability and aesthetics.
SOLUTION
Difficult-to-reach spots were sealed with expanded foam and primed with a high-solids primer, followed by multiple protective coatings and quality checks throughout the process.
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