Pierces Fiberglass is pleased to offer EcoFinish as an alternative to traditional pool finishes including gunite pools EcoFinish resists chipping, cracking, and staining and comes with a 10-year warranty that is unique to the industry. It is non-porous and PH neutral, which means a pool coated with EcoFinish will use a fraction of the chemicals necessary to maintain a traditional pool finish and chemical consumption can be reduced by as much as 40%. In addition, it inhibits the growth of mildew on the surface - and since it is not chemically attractive to calcium - it is resistance to scale buildup as well.