Cleaner and mordanting of cements and ceramics surfaces. With inhibitors of corrosion of concrete and steel. Provides porosity to the supports which facilitates the anchoring of the paints. Rinse with water and let dry before painting. Reacts with alkaline surfaces and similar, degrading and disintegrating the hardened crusts, so that they can easily be removed by brushing or with water. Air indoors. Dilution with 3 parts of water. COV: Not applicable.