Pls-100 is a concrete hardener and polisher based on lithium and its aqueous solution, transparent and mineral. This product is liquid and it can lead to closing of porosity and capillary tubes. It also prevent from penetrating particles of water, vapor, oil and destructive gases due to penetrant into concrete and cement surface texture in addition to reacting with calcium salts and magnesium. It also anti-dandruff the concrete and cement surfaces by absorbing calcium and lime compounds. In addition to losing the absorbing and penetrant centers, resistant concrete surfaces with silicate penetrant hardener based on lithium leads to increasing the abrasion resistance and reduction of permeability.