How does acid rain affect the surface of granite outdoor chairs?
Acid rain significantly impacts the surface of granite outdoor chairs through chemical weathering and erosion. When acidic precipitation, containing sulfuric and nitric acids, reacts with the minerals in granite—primarily feldspar and quartz—it breaks them down over time. This process weakens the stone's structure, causing pitting, discoloration, and a rough texture. Prolonged exposure accelerates deterioration, making the chairs more susceptible to cracks and crumbling. To mitigate damage, sealing the granite with a protective coating and regular cleaning can help preserve its appearance and durability. Understanding these effects is crucial for maintaining outdoor granite furniture in acidic environments.
