How does salt spray exposure affect ALRE components and what measures help mitigate it?

How does salt spray exposure affect ALRE components and what measures help mitigate it?

• A. Increased conductivity; remove coatings.
• B. No effect.
• C. Promotes corrosion; protective coatings, frequent cleaning, corrosion-resistant materials.
• D. Only affects electrical components.

Answer: (C)

Salt spray exposure creates a salty, moist film that acts as an electrolyte on metal surfaces, speeding electrochemical corrosion. This is especially a hazard for ALRE components that see shipboard salt air and where coatings or finishes may be damaged. The best mitigation combines protective coatings that form a barrier against moisture and chlorides, use of corrosion-resistant materials in exposed areas, and regular maintenance to keep coatings intact. Frequent cleaning removes salt deposits and moisture, breaking the electrochemical cycle that promotes corrosion. Additional design and material choices, like alloys with higher resistance and proper sealing and drainage, help limit salt retention and extend component life.

Salt spray exposure creates a salty, moist film that acts as an electrolyte on metal surfaces, speeding electrochemical corrosion. This is especially a hazard for ALRE components that see shipboard salt air and where coatings or finishes may be damaged. The best mitigation combines protective coatings that form a barrier against moisture and chlorides, use of corrosion-resistant materials in exposed areas, and regular maintenance to keep coatings intact. Frequent cleaning removes salt deposits and moisture, breaking the electrochemical cycle that promotes corrosion. Additional design and material choices, like alloys with higher resistance and proper sealing and drainage, help limit salt retention and extend component life.