How permanent is the stone coloration?
EarthStone uses a combination of coloring techniques to achieve the color variation and natural look that is desired. EarthStone uses iron oxide pigments that are formulated specifically for concrete coloration. Integral colors are added during the concrete mixing operation and create the base (predominant) color of the stones while the highlight colors are applied during the concrete pouring stage of the process. Both methods result in colors that are both permanent and steadfast. The integral color means that the color is present throughout the stone. Please note, however, that cutting of the stone exposes the stone composition and compromises the natural, consistent look of the stone. In some instances, slurry consisting of a relatively fluid mortar with the appropriate coloration may be applied to the cuts to help conceal concrete composition. Note: Unless stone surfaces are sealed with an appropriate concrete sealer, due to the porous characteristic of the stone, slight lightening
