What are the effects of prolonged exposure to hand sanitizer on aluminum surfaces?

Prolonged exposure to hand sanitizer on aluminum surfaces can lead to significant damage, including corrosion and surface degradation. Most hand sanitizers contain alcohol (ethanol or isopropanol) and other additives like hydrogen peroxide or glycerin, which can react with aluminum over time. The alcohol accelerates oxidation, causing the metal to weaken and develop pits or discoloration. Additionally, acidic or alkaline components in sanitizers may further accelerate corrosion. To minimize damage, it’s advisable to wipe off excess sanitizer promptly and avoid frequent contact with aluminum surfaces. Protective coatings or alternative materials can also help mitigate long-term effects. Understanding these risks is crucial for maintaining the integrity of aluminum-based items in high-sanitization environments.