Powerful acid cleaner for removing construction residues. Dissolves and removes residues from grouts, tile adhesives and cement that were created during construction. It thoroughly cleans and removes stains from oils, coffee, drinks, lime, emulsion paints, rust etc. It removes pollutants accumulated over time in tile joints, and makes their colors more vibrant with just minimal scrubbing. Use it only after allowing for at least 20 days to pass from grouting completion. Rinse with plenty of water, immediately after the application.