Do tiles have to be subsequently treated or impregnated after laying?
Matt, non-polished vilbostone porcelain stoneware tiles do not have to be subsequently treated with an impregnating agent! The surface of matt vilbostone porcelain tiles features the vilbostoneplus ceramic surface finish, which greatly improves the tiles' resistance to staining and soiling.
After basic cleaning, polished porcelain stoneware tiles have to be subsequently sealed with a suitable stain preventer. We recommend use of the Carrogard stain preventer. Carrogard is an oil-, grease- and water-repellent stain preventer (containing solvents) that gives polished porcelain stoneware tiles lasting protection and that only has to be applied once.