How does marble react to acidic rainwater in outdoor flower pots?
Marble, a popular material for outdoor flower pots, is highly susceptible to damage from acidic rainwater. When exposed to rain with a low pH level (acidic), the calcium carbonate in marble reacts chemically, leading to gradual erosion. Over time, this reaction causes the surface to become pitted, discolored, and weakened. In outdoor settings, repeated exposure accelerates deterioration, compromising both aesthetics and structural integrity. To minimize damage, consider sealing marble pots with protective coatings or relocating them to sheltered areas during heavy rainfall. Regular cleaning with pH-neutral solutions can also help preserve their appearance. For long-term durability, alternative materials like glazed ceramics or fiberstone may be more suitable in regions with frequent acid rain.
