All Piage & Pieta pieces are coated with their own Stone Enhancing Sealer
. The finest protection available, this stone sealer provides extraordinary protection for their finishes. To maintain factory finish, re-apply Ancient Mosaic Studios' Stone Enhancing sealer every 6 to 12 months. It takes only a few minutes to apply an even coat of the sealer and then wipe the piece dry. To achieve a naturally antiqued finish, place piece outside and do not re-seal.
Most dirt and debris can be removed with plain water and for more thorough cleaning, use a PH-neutral cleaner such as Simple Green (available at most grocery stores). Do not use a power-washer and avoid ammonia based cleaners that can break down the sealer. To maintain the factory finish, acidic contaminants should be removed reasonably quickly since over time they may begin to penetrate the sealer and stain the piece. Again, many people prefer to leave the piece untreated and simply let it age naturally.