BAUER Acid Cleaner for Natural Stones & Firebricks

Special cleaner for natural stone and firebricks. Cleans and restores the natural color of stone, removing any kind of residue such as dirt, soot (fireplace), dust, mold, grouting and general impurities that accumulate over time. For all natural stones. If in doubt about the type of surface, a trial in a small partion of the surface is recommended. 
Chemical composition: phosphoric acid solution and synthetic detergents.