Bio white mineral-based wall coating for exteriors and interiors Use RF 100 is used as decorative Plaster for exteriors and interiors. For exterior use we suggest Lime-and-Cement-based foundation plasters containing water-repellent material such as our fibre-reinforced product KI 7. For interior use we suggest application on lime-and-cement-based foundation plasters (KB 13, KC 1, KS 9, KP 3) or clean surfaces in concrete. Supply Special sacks with protection against moisture, approx. 30 kg. (The product packaging will gradually pass from 30 kg sacks to 25 kg sacks).