KOSTER MRU is a cementitious-based self-leveling underlayment with high resistance to chemical and mechanical stresses. It is an early loadable, directly useable leveling layer over uneven or coarse concrete and cementitious screeds. KOSTER MRU is further used for fast repairs in industrial, business, workshops, production facilities, and private use buildings. The KOSTER MRU can be installed over slabs with an RH of 100%.
Coverage: Approximately 16 square feet per 50 lb bag at 3/8 inch layer thickness.