COLOUR-STABLE Colours change when exposed to UV light and other external influences: wood goes dark or grey, and facades fade. The latter can be avoided: silicate paints by KEIM contain only lightfast, inorganic pigments and mineral binding agents such as potassium silicate or sol-silicate. Potassium silicate is not just a natural binding agent: it is also extremely weather-resistant. In contrast to emulsion paints, the inorganic pigments are not enclosed in a film but are exposed directly to the rays of light. The colour shades shine directly out of the velvety matt surface, revealing an amazing, durable depth and brilliance. And so KEIM facades remain unchanged for decades.