Our wall repair paste (100g) is carefully formulated with calcium carbonate and calcium oxide. Specially designed for water resistance， crack resistance， alkali resistance， mold resistance， fast drying and environmental protection. After restoration， it is firmly combined with the wall and remains as good as new for a long time. The usage method is extremely convenient: 1. Clean the wall thoroughly to ensure there are no debris. 2. Take an appropriate amount of this product and apply it evenly to the damaged wall surface， then wait for it to dry. After drying， gently sand it smooth with sandpaper. The wall repair paste can be used for wall repair and renovation， waterproofing and mold prevention， as well as crack repair.