Pool plaster is a standard interior finish for swimming pools, providing a smooth and watertight surface. Plaster finishes come in various colors and textures, typically made from cement, sand, and water. Over time, plaster can degrade, leading to discoloration, cracks, and rough spots. Regular maintenance and timely replastering are essential to preserve the pool’s integrity. Modern alternatives like quartz or pebble aggregates offer enhanced durability and aesthetic appeal.