The Olympic CC15021/GL 1 Gallon Light Gray Zeron Catalyst and Pool Coating Set offers an attractive finish in the longest-lasting epoxy pool coating available: up to 8 years of performance from a single one-coat application. Due to the extremely long life of Zeron, the cost per year of service is lower than any other pool coating available. This coating may be applied by roller or airless spray equipment, and is highly recommended for professional pool builders and pool service companies as an alternative to traditional pool plaster. Once applied, the finished surface will stay brighter and will be easier to maintain than a plastered pool.