Also Known As: Marbelite, Whitecoat, Marcite, Surface
Contrary to popular belief, plaster materials are not watertight but semi-permeable membranes, allowing small amounts of moisture to slowly permeate through these coatings. A plaster finish can take more everyday wear and tear than most other finishes, but it will probably need some TLC every seven to 10 years or so.
While replastering may seem like a much more involved process, it can be the most effective way to insure that the pools finish is around for a much longer time. And these days, with many colors and textures available, replastering is a great option for giving an old pool a facelift.
Besides white plaster (which is made of marble dust and white cement), many alternative aggregates have become popular over the last 15 years and for good reason. The new aggregates are much harder, creating a stronger, more durable finish. With quartz, pebble and glass beads, a variety of interesting additives add as much as 10 to 12 years to the life of a pools surface, as long as water chemistry is properly maintained.