Cemcrete Pool Plaster Sky Blue 40kg is a type of pool finishing product used for plastering the interior surfaces of swimming pools. The "Sky Blue" color is a shade of blue color which is used to give the pool a decorative finish. The product is made from a blend of cement, fine aggregates, pigments and other performance-enhancing additives. It is applied to the pool surface in a wet mix form and then troweled smooth to form a hard, durable and watertight finish. The 40kg package is the standard packaging size for this product, which is typically enough to cover around 40-50 square meter of pool surface. Cemcrete Pool Plaster Sky Blue 40kg is a popular choice among pool builders and owners because of its durability, water resistance, and ease of maintenance.