This stone is classified as “Limestone”. The characteristics of the unique beige color make it the iconic material used in classic design. It is commonly found on exterior cladding projects. However, limestone is highly sensitive to acids and alkalis. It is recommended to apply several layers of waterproofing coatings to eliminate the weathering problem. With the addition of nano-coating applied by our professional, it forms a water-proofing layer onto it, regular re-applying of this coating maintains the best outlook for more than 3 years.