CM352 is a solvent-based, film-forming corrosion inhibitor. Unlike greasy coatings that merely block moisture, CM352 utilizes polar adsorption. The molecules contain a hydrophilic "head" that bonds to the metal surface and a hydrophobic "tail" that repels water and airborne contaminants.
This CPE material is designed for use as a thermoplastic elastomer. It is particularly suitable for extrusion and molding processes in the wire and cable industry (cable jackets) and for manufacturing hoses .
CM352 is a chemical coating developed and specified by Hartzell Propeller Inc., used primarily as a protective barrier against corrosive elements. Its specific formulation is designed for use on metallic aircraft components, particularly those that are integral to the propeller assembly.
: Keep the inhibitor away from open flames, pilot lights, and spark-generating machinery, as these chemical mixtures often carry high volatile organic compounds (VOCs) and low flashpoints.
CM352 operates primarily as a . When brushed onto the metal surface, it dries to form a protective film that physically seals the metal from oxygen and moisture.
The organic cations (R₄N⁺) adsorb onto the metal surface following a or Temkin isotherm. The adsorption is physical + chemical (physisorption + chemisorption), with free energy of adsorption ΔG° ads typically between –30 and –45 kJ/mol, indicating spontaneous, stable film formation.
It interacts with the metal surface to form an ultra-thin, protective oxide film at the anode. This film blocks the release of metal ions into the water, stopping rust before it starts.
to apply a complete coating over the specified hardware, ensuring bolt wells and pins are fully covered. : Allow the compound to cure for at least three hours before flight. Hartzell Propeller Important Precautions Ice Protection Systems
Corrosion is the invisible enemy of any metal structure, and in no industry is this threat more pronounced than in aviation. The constant exposure to atmospheric changes, moisture, and de-icing chemicals makes aircraft components highly susceptible to corrosion, which can compromise safety and lead to costly repairs.
| Inhibitor | Efficiency (in 15% HCl, 60°C, 200 ppm) | Toxicity | Cost Index | Application Limits | |-----------|------------------------------------------|----------|------------|--------------------| | | 94% | Low (EC50 > 100 mg/L) | 2 | Up to 120°C | | Propargyl alcohol | 96% | High (carcinogen) | 1.5 | < 70°C, toxic fumes | | Imidazoline derivative | 91% | Moderate | 3 | Emulsification risk | | Chromate (Cr⁶⁺) | 98% | Very high (banned) | 1 | Banned in EU, USA | | Phosphate/Zn²⁺ | 75% | Low | 1.5 | Only in neutral pH |
CM352 is a solvent-based, film-forming corrosion inhibitor. Unlike greasy coatings that merely block moisture, CM352 utilizes polar adsorption. The molecules contain a hydrophilic "head" that bonds to the metal surface and a hydrophobic "tail" that repels water and airborne contaminants.
This CPE material is designed for use as a thermoplastic elastomer. It is particularly suitable for extrusion and molding processes in the wire and cable industry (cable jackets) and for manufacturing hoses .
CM352 is a chemical coating developed and specified by Hartzell Propeller Inc., used primarily as a protective barrier against corrosive elements. Its specific formulation is designed for use on metallic aircraft components, particularly those that are integral to the propeller assembly. cm352 corrosion inhibitor
: Keep the inhibitor away from open flames, pilot lights, and spark-generating machinery, as these chemical mixtures often carry high volatile organic compounds (VOCs) and low flashpoints.
CM352 operates primarily as a . When brushed onto the metal surface, it dries to form a protective film that physically seals the metal from oxygen and moisture. CM352 is a solvent-based, film-forming corrosion inhibitor
The organic cations (R₄N⁺) adsorb onto the metal surface following a or Temkin isotherm. The adsorption is physical + chemical (physisorption + chemisorption), with free energy of adsorption ΔG° ads typically between –30 and –45 kJ/mol, indicating spontaneous, stable film formation.
It interacts with the metal surface to form an ultra-thin, protective oxide film at the anode. This film blocks the release of metal ions into the water, stopping rust before it starts. This CPE material is designed for use as
to apply a complete coating over the specified hardware, ensuring bolt wells and pins are fully covered. : Allow the compound to cure for at least three hours before flight. Hartzell Propeller Important Precautions Ice Protection Systems
Corrosion is the invisible enemy of any metal structure, and in no industry is this threat more pronounced than in aviation. The constant exposure to atmospheric changes, moisture, and de-icing chemicals makes aircraft components highly susceptible to corrosion, which can compromise safety and lead to costly repairs.
| Inhibitor | Efficiency (in 15% HCl, 60°C, 200 ppm) | Toxicity | Cost Index | Application Limits | |-----------|------------------------------------------|----------|------------|--------------------| | | 94% | Low (EC50 > 100 mg/L) | 2 | Up to 120°C | | Propargyl alcohol | 96% | High (carcinogen) | 1.5 | < 70°C, toxic fumes | | Imidazoline derivative | 91% | Moderate | 3 | Emulsification risk | | Chromate (Cr⁶⁺) | 98% | Very high (banned) | 1 | Banned in EU, USA | | Phosphate/Zn²⁺ | 75% | Low | 1.5 | Only in neutral pH |