April 20, 2022
NATURAL STONE STAINS CAN BE REMOVEDThe key to successfully treating natural stone stains is cleaning up any spills and treating any resulting stains as soon as you can. The best way to remove a stain on stone or other porous hard surfaces is with a poultice. A poultice is simply a mixture of a chemical or cleaning agent to break down the stain and an absorbent material to draw the stain out of the pores of the stone. You can purchase convenient ready-made poultices or create your own.
STONE STAIN REMOVAL: THE POULTICING METHODAs mentioned above, a poultice is the combination of a very absorbent medium (it must be more absorbent than the stone) mixed with a chemical, which is to be selected in accordance with the type of stain to be removed. The concept is to re-absorb the stain out of the stone. The chemical will attack the stain inside the stone, and the absorbent agent will pull them both out together. The absorbent agent can be the same all the time, regardless of the nature of the stain to be removed, but the chemical will be different—in accordance with the nature of the staining agent—since it will have to interact with it.