Dark natural stone types such as the darker granite varieties, Belgian bluestone etc. are subject to wear and tear after a while, which can be seen as matt, dull, grey coloured walkways or patches. HG Natural Stone Colour Intensifier (Product 48) for granite, blue stone and other natural stone types is a professional product which re-enhances the colour of your natural stone and brings it back to life. Moreover this unique composition HG Natural Stone Colour Intensifier impregnates, nourishes and protects the stone against dirt and staining by water or other liquids. HG Natural Stone Colour Intensifier will not make the surface slippery nor will it harm the natural breathing process of the stone. The darker the stone type, the greater the effect. HG Natural Stone Colour Intensifier can be buffed to a gloss finished if required. Coverage: +/- 100 m² per litre (+/- 25 m² per 250ml), depending on the absorption rate of the natural stone.