The type of stains you have will determine the cleaning techniques you choose. Typically, cleaning with soap and water and a soft scrub brush is effective. On surfaces that are sensitive to acid, Unilock offers PowerClean, a concentrated, high-alkaline cleaner and degreaser that works quickly to remove most grease, food stains, general debris, and mild cement contamination. Find out more about natural stone cleaning solutions, speak with an Authorized Contractor.