Based on Hartzell Service Documents, follow these steps for effective application: Preparation
Achieving maximum protection with Corrosion Inhibitor CM352 requires precise control. Too little leaves metal exposed; too much can cause foaming or oily residues.
Corrosion is a natural process that occurs when metals react with their environment, leading to the degradation of the metal's properties. It can occur through various mechanisms, including chemical reactions, electrochemical reactions, and physical interactions. Corrosion can affect any metal, but it is most prevalent in iron, steel, copper, and aluminum. corrosion inhibitor cm352
: While nitrite is cheaper, it fails in copper-rich systems. While molybdate protects both, it costs 4x more than CM352. For mixed metallurgy, CM352 offers the best value.
CM352 is a solid choice for temporary protection , storage, or low-temp closed systems. It’s not a heavy-duty industrial inhibitor for high-velocity brines or acids. If you need long-term (6+ months) immersion protection, look at a petroleum-based or VCI product instead. For the price (~$25–40 per liter), it’s reasonable. Based on Hartzell Service Documents, follow these steps
Once the passive film is formed (approx. 48 hours):
By integrating CM352 into your corrosion management plan, you move from reactive repairs to predictive maintenance—saving millions in downtime and replacement costs over a facility's lifetime. It can occur through various mechanisms, including chemical
CM352 loses efficiency below pH 6.5. If your system has CO² ingress or organic acid formation (from glycol breakdown), the film will dissolve. Solution: Feed a pH buffer like borax or caustic soda to maintain pH 7.5–8.5.
While generic phosphonate blends exist, genuine CM352 contains specific azole ratios that generic suppliers often cut. Always request a Certificate of Analysis (COA) verifying the triazole content (>8% by weight).
: For yellow metals, CM352 contains tolyltriazole (TTZ) derivatives. These molecules chemisorb onto copper surfaces, forming a protective polymer chain that prevents the reduction of oxygen, thereby stopping galvanic corrosion where copper contacts steel.
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