Plaster is more expensive than painting, but it will provide protection and a classic appearance for your pool. Most pool plaster is made up of cement, sand and water. However, some high-end pools use marble aggregate. Refinishing a medium-sized pool with plaster is relatively simple for about $7,000-$10,000, though it requires regular maintenance.
Some pools might need a chemical treatment or a chemical wash to clean and prep the surface. Use a sandblaster or chisel the underlying concrete to ensure the new material holds well. Focus on a tiny area of the pool at a time. This process can take up to three days, depending on the size of your pool.
Some pools may require a chemical treatment to prepare the surface. To ensure that the new material is stable, use a sandblaster to blast the concrete. Concentrate on one small area at a time. Depending on how large your pool is, this process could take up to three days.
sgm pool plaster