Household stains are practically inevitable. Yellow spots can appear on walls due to water leaks or seepage, heating, smoking, dirt or grease from cooking, and children or pets can leave traces of dirt, colouring pencils or food on the walls with their hands and paws. All these stains share the ability to dissolve in water, which means that when wall paint is drying, the evaporating water will bring them out to the surface. SPEKTRA Stain Block Grund offers excellent blocking of stains caused by nicotine, fire, water leaks, tannin, wine, juices, coffee, colouring pencils etc. and prevents them from re-appearing in the topcoat. You can use any interior wall paint from the SPEKTRA brand as a topcoat.