Pool plaster finish type differences
Over the last 20 years a great deal has been determined about pool plaster finishes and how to make it last longer. In July of 2004, the National Plasterers Council Research Foundation INC. began construction of the research center at Cal Poly in San Luis Obispo, CA. Over the next few weeks I will go into detail on what has been learned over the years and what types of finishes that resulted from that research center.
Pool plaster finishes are made up of an aggregate and white portland cement. Examples of the types of aggregate used are marble dust, quartz, pebbles, and glass beads. I will explain the type of plaster finishes available with the different aggregates. There are also different types of cements and additives that are designed to improve cement performance within these plaster finishes.
Standard Pool Plaster
Standard white pool plaster is a time tested surface for the interior finish of a swimming pool. It has been around for as long as pools have been being built. Color plaster is achieved by adding pigment to standard white plaster.
Manufactures have developed some plaster finishes with pozzalons, polymers, or other additions to make the cement stronger in its ability to withstand water chemistry imbalances. Pigments are commonly added to these finishes.
50% Color Quartz Plaster
This finish replaces 50% of the marble weight in the mix with quartz. Effectively making the aggregate portion of the mix ½ quartz and ½ marble dust. The quartz can be colored for a speckled finish appearance or white. Pigment can also be added to this finish.
Aggregate surfaces are pre blended products composed of quartz aggregates and fortified cement. There are many different colors available. These are an upgrade alternative to traditional plaster and more durable than traditional plaster.
Pebble surfaces are the commonly thought to be the most durable plaster type. They derive the unique look from the differently colored natural pebbles. The pebbles are not affected by water in color or strength.
Polished Aggregate Finishes
Aggregate surfaces are pre blended products composed of quartz aggregates and fortified cement. There are many different colors available. These are an upgrade alternative to most other plaster finishes. They are generally the most consistent looking finish due to the polishing.
Glass Bead Finshes
Glass beads are combined with cement. The beads are not affected by water. The glass beads are an eye catching finish. The bead are generally smooth.