89252 ⎘
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone; Coating or impregnating e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements, with organic materials; Oils, fats or waxes natural resins; Natural resins, e.g. rosin Cellulosic waste liquor, e.g. sulfite lye