RIMAstar is used as primer on plaster, concrete, brick and similar surfaces and prepares strong foundation for last coats to be applied on it and reduces consumption of finishing paint. Since it contains silicone Rimastar is water repellent. The primer is waterproof and ensures removal of moisture thanks to its vapor transmissivity. It has high covering and adhesion power. The primer may be used on mineral-based plastered surfaces that will be painted for the first time and on interior surfaces with old paint. It can serve as primer on any interior and exterior surfaces.