Cm352 Corrosion Inhibitor Site
The CM352 corrosion inhibitor works via four distinct protective mechanisms:
Because CM352 is non-conductive and safe for sensitive surfaces, it is applied to printed circuit boards (PCBs), terminal strips, and relay contacts in humid environments. It prevents "fretting corrosion" caused by vibration.
| Environment | Initial dose | Maintenance dose | Notes | |-------------|--------------|------------------|-------| | Acidizing (15% HCl, 90°C) | 0.3% v/v | – | Add KI 0.03% for synergy | | Cooling water (pH 7.5, 40°C) | 50 ppm | 20 ppm weekly | Monitor biocide compatibility | | Sour brine (200 ppm H₂S) | 100 ppm | 50 ppm every 3 days | For batch treatment | | Pipeline pigging | 0.1% in batch volume | – | Use with MEG for hydrate control |
In an ideal world, metal surfaces would be spotless before treatment. In reality, pipelines are often covered in mill scale, rust, or hydrocarbon residue. CM352 is engineered to "wet" the surface effectively, displacing water and adhering even to less-than-pristine metal surfaces. This is crucial for aging infrastructure.
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This report is for informational purposes. Always consult the supplier’s current safety data sheet (SDS) and conduct site-specific compatibility tests before industrial use.
CM352 corrosion inhibitor — overview and suggested technical text
CM352 is a commercial corrosion inhibitor formulation used to protect metal surfaces in industrial and oilfield environments. Below is concise, general-purpose technical copy you can adapt for product literature, safety data sheets, or specification documents.
Product description CM352 is a liquid amine-based corrosion inhibitor designed for use in circulating cooling systems, production tubing, pipelines, and downhole applications. It forms a thin, adsorbed protective film on ferrous and non-ferrous metals to reduce electrochemical attack and inhibit pitting and general corrosion. cm352 corrosion inhibitor
Key features and benefits
Typical applications
Performance and dosage
Compatibility and materials considerations
Handling, storage, and safety
Testing and monitoring
Regulatory and environmental notes
Suggested specification language (short) "CM352 is an amine-based, film-forming corrosion inhibitor formulated for protection of ferrous and non-ferrous metals in oilfield and industrial aqueous/hydrocarbon systems. It is effective at low ppm dosing, thermally stable up to typical field temperatures, and compatible with common production chemicals. Minimum effective concentration shall be determined by site-specific testing." The CM352 corrosion inhibitor works via four distinct
If you want this tailored to a specific use case (pipeline, downhole, cooling tower), a different tone (marketing vs. SDS), or need an editable Word/HTML version, tell me which and I’ll adapt it.
CM352 is a specific corrosion inhibitor primarily used in the maintenance and assembly of Hartzell Propellers. It is classified as a "consumable material" in Hartzell technical documentation. Key Uses & Application
Purpose: It is applied to prevent corrosion on steel components, specifically bolt-on steel counterweights on propellers.
Maintenance: Hartzell recommends periodic re-application of CM352 at regularly scheduled intervals, typically aligning with the lubrication schedule found in the Hartzell Propeller Owner's Manual.
Repair Procedures: If corrosion is found during inspections (such as on staking pins or mounting bolt recesses), the area is cleaned with a solvent (like CM23) and then treated with CM352 or an equivalent inhibitor. Technical Context
Standard Practices: CM352 is detailed in the Hartzell Propeller Standard Practices Manual 202A (61-01-02).
Manufacturer: It is a locally procured consumable material used by Hartzell Propeller Inc. and its authorized service centers.
For specific application instructions or to check if your propeller model requires this treatment, you can refer to the Hartzell Service Documents library. Because CM352 is non-conductive and safe for sensitive
Are you performing a scheduled inspection or a specific repair on a Hartzell propeller assembly? HC-SL-61-364 - SERVICE LETTER
CM352 is an aviation-grade corrosion inhibitor primarily used in the maintenance and assembly of aircraft propellers. Usage and Application
Primary Function: It is specifically applied to steel counterweights on Hartzell Propeller Inc. products to prevent surface rust and environmental degradation.
Maintenance Cycle: Manufacturers recommend periodic re-application at regular service intervals, often aligning with standard propeller lubrication schedules.
Repair Procedures: It is used during inspections to treat surfaces after cleaning away existing corrosion with approved solvents (like Stoddard solvent CM23) and abrasive pads. Identification
Reference Code: CM352 is listed as a "CM Number" within the Consumable Materials chapter of the Hartzell Propeller Standard Practices Manual 202A .
Procurement: It is typically categorized as a consumable material that may be locally procured or sourced through aviation parts suppliers like PB Aviation Parts . HC-SL-61-364 - SERVICE LETTER
At optimum concentration (50–200 ppm), surface coverage (θ) exceeds 0.95, reducing both H⁺ reduction (cathodic) and Fe dissolution (anodic).
Many extended-life antifreeze formulations utilize CM352 technology. It provides long-term protection for cast iron engine blocks, aluminum cylinder heads, and copper-brass radiators without the silicate gelation issues seen in older inhibitors.