Sandstone and limestone are soft stones subject to rapid deterioration. Due to this, McLeod Masonry has developed a process to replicate these softer stones to look the same as the original, but be far more durable and long-lasting.   The process involves removing the deteriorated stone, repairing it, then moulding the stone out of various materials such as rubber, sheet metal, fiberglass, wood, plaster and foam. The product used is a high tech binding agent of calcium silicate aluminate.   The pieces of stone are then installed on the building and are undefinable from the original.