E-Z Patch 10 Quartz Plaster Repair Fast Set - 50 lbs. (3M Colors) EZ Patch EZP10-50-FS EZP10-50-FS E-Z Patch 10 F.S. (Fast Set) Quartz Plaster Repair is specifically designed for underwater or fast above water Quartz Plaster repairs. E-Z Patch 10 F.S. (Fast Set) Quartz Plaster Repair is also the best to use for fast repairs in cold temperatures. This product contains special modified materials with pozzolans (siliceous volcanic ash) and polymers. If water is lowered to do repairs, the pool may be refilled after 4 hours.All of the EZ-Patch cement repair colors may be adjusted using any cement dye. Color sample screen appearance may vary and cannot be guaranteed for accuracy.HINTS: To prevent surface shrinkage cracks in repairs over 3/4 inches deep, use a 2-step process. First, fill-in with E-Z Patch 1, 5, 6, 7, 9, 10 or 11 until the depth is 3/8 inch. Then, after fill-in is dry, dampen with water and finish the repair. For flexibility, E-Z Patch 24 can be applied prior to repairs.A 50 lb. bucket covers up to 15 square feet at 3/8 inches.