Pool coping is the material above the tile line that generally covers the top of the pool structure. This part of the pool is normally 12" wide and is called the bondbeam. Coping comes in many different materials such as poured concrete, brick, flagstone, pre-cast concrete, travertine or tile.
Frost proof tile has the ability to withstand freeze/thaw conditions with mineral effect. The frost resistance of ceramic tile is dependent on the tile's porosity and water absorption levels. Pool tile is non-porous and coated with a specially formulated glaze that prevents cracking and fading. The special glaze also makes pool tile water resistant and easy to clean. Tiles that are designed for a swimming pool will give you the most bang for your buck.
Frost proof pool tile can last up to 10 years if the water chemistry is maintained properly.
Pool plaster is the final coating applied to the shell of a concrete inground pool. The layer of plaster is normally 1/4 inch to 1/2 inch thick. Pool plaster adds a watertight seal and makes the surface of the pool smoother for contact with swimmers than the underlying rough concrete shell. A pool plaster surface in a properly maintained pool can last 15 to 25 years.