Our Limestone restoration process consists of a multiple step mechanical process using diamond abrasive pads and water. Generally this is a three step process that starts with grinding the surface of the stone with a course grit abrasive pad. After grinding the stone the second step is to hone the surface of the stone with a finer grit abrasive pad. Honing makes the surface of the stone very smooth but results in very little shine. After honing, the final step is to polish the surface of the stone with fine diamond abrasive to achieve the desired finish.