E-Z Patch® 9 Pebble Plaster Repair is used for above water pebble plaster repairs (water must be lowered). This product contains a special acrylic modified material with pozzolans (siliceous volcanic ash). After doing repairs, water may be refilled the next day. Liquid Acrylic Bonder is included in the kit. Our formula is stronger than original pool plaster or replaster materials.