This Base Coat from Polycell has been designed with top market Polyfilla Technology. The 3 In 1 Base Coat is a unique undercoat for walls that completely covers all common wall imperfections in one easily applied coat. The 5-in-1 formulation not only covers hairline cracks, stains, patchiness and strong colours, but also permanently stops them from reappearing - providing the perfect foundation before you paint. Features: A unique undercoat for walls and ceilings that completely covers all common wall imperfections. Permanently covers cracks, stains and strong colours in just one coat. Easily applied with a roller, straight from the tub.