Cm352 — Corrosion Inhibitor

Propeller Assembly Visual Inspection Focus Areas: ├── Staking Pin & Staking Pin Hole ──> Clean (CM23) & Protect (CM352) ├── Mounting Bolt Recesses ──> Inspect for Pitting & Re-apply CM352 └── Steel Counterweight Surface ──> Periodic Field Re-application of CM352 3. How CM352 Works: The Chemical Mechanism

It blocks degradation driven by continuous exposure to rain, high humidity, cloud moisture, and coastal salt spray. 2. Primary Applications in Aviation Maintenance

CM352 is a highly controlled compound regulated by strict aerospace standards. Fleet managers and mechanics should keep the following sourcing requirements in mind: HC-SL-61-364 - SERVICE LETTER

Simultaneously, the components of CM352 react with hydroxyl ions generated at the cathode. This reaction creates a thin, adherent precipitate layer that physically blocks oxygen diffusion to the metal surface. Since oxygen reduction is the primary driver of aqueous corrosion, eliminating oxygen contact dramatically reduces the corrosion rate to less than 0.5 mils per year (MPY)—even in aggressive, low-pH environments. cm352 corrosion inhibitor

Hartzell Propeller Inc. applies CM352 during the assembly process of bolt-on steel counterweights to prevent initial corrosion.

CM352 represents a robust solution for mitigating corrosion in aggressive oilfield environments. Its filming amine technology provides a reliable barrier against CO2 and H2S corrosion, extending the asset life of pipelines and tubing. To maximize efficacy, operators should conduct thorough compatibility testing with elastomers and process fluids and ensure continuous injection rates are optimized based on corrosion monitoring data (coupons or probes). Primary Applications in Aviation Maintenance : CM352 is

CM352 is a specialized, high-performance corrosion inhibitor

Molecules within the inhibitor adhere (adsorb) to the metal, creating a microscopic protective layer that resists environmental wear. Why Regular Application Matters Since oxygen reduction is the primary driver of

Apply a uniform, continuous layer of CM352 over all bare metal surfaces, threads, and hardware recesses. Ensure total coverage without allowing excessive pooling that could disrupt the mechanical balance of rotating parts. Step 4: Recurring Re-application