Miracle Sealants^® Miracle Heavy Duty Cleaner (Acid Substitute) is an alkaline, industrial-strength cleaner designed to remove grout haze, built-up grease, dirt and stains from all ceramic, porcelain, grout, glass and natural stone surfaces.

Miracle Heavy Duty Cleaner is as strong as an acid-based cleaner, but without the harmful effects. This non-corrosive, water-based cleaner will not damage or remove the finish or polish on acid-sensitive surfaces, including marble. It penetrates deep below stains to remove dirt and grime at the molecular layer and leaves the surface more resistant to dirt and stains.