SICONG® KY50 stone sealant ( mercerizing agent ) can penetrate the stone bottom surface pores and micro cracks in the stone back, forms a tough transparent protective film, block stone micro cracks and pores, and can effectively prevent the Bai Hua, spit yellow, rust, water spots and other stone cases. The wet paste to achieve the ideal effect of dry hanging. The use of this product should be mixed with some fine powder sand stone and cement mortar to enhance bonding strength, good alkali resistance.