Full Steam-System Corrosion Protection from Boiler to Condensate Return

CI No. 49 is the upgraded steam-system corrosion inhibitor for operators who need more than simple acid neutralization in the condensate return. Where No. 45 neutralizes carbonic acid, No. 49 adds a second line of defense: filming amines that lay down a hydrophobic barrier on internal metal surfaces. That means two protection mechanisms working together — neutralizing amines handle the acid chemistry, while filming amines help keep corrosive condensate from contacting the metal in the first place.

This makes No. 49 the stronger choice in steam systems with more aggressive condensate conditions, higher purity requirements, or a history of return-line pitting, trap failures, and premature metal loss that neutralization alone has not fully solved. Instead of protecting only through pH correction, it protects through both chemical neutralization and physical surface shielding across the steam-condensate cycle.

CI No. 49 is the condensate-side upgrade for operators who want fuller downstream protection and visible confirmation that treatment is reaching the system. In practical terms, it helps extend the life of steam traps, heat exchangers, return piping, and other condensate-handling components while reducing the kind of hidden metal loss that turns a steam system into a recurring repair file.