Zep Industrial Grout Cleaner and Brightener - 32 oz (Pack of 4) ZU104632 - Deep Cleaning Pro Formula

Zep Grout Cleaner & Brightener is characterized by its potent acidity, making it a formidable cleaning solution. It's imperative to keep it out of reach of children and ensure they are kept away from treated surfaces during application to prevent any accidental exposure. Additionally, if left unopened, the product maintains its efficacy for up to 2 years after the manufacturing date. However, it's essential to note that while using Zep Grout Cleaner & Brightener past its expiration date won't cause harm to surfaces, its cleaning effectiveness diminishes over time. Not for use on marble, terrazzo, travertine, natural stone, chrome, stainless steel, brass, or Corian®. These sensitive surfaces are susceptible to damage. Instructions: Containing hydrochloric acid, Zep Grout Cleaner & Whitener, when used according to the label instructions, will not interfere with the bacteria or enzyme action in septic tanks. It's crucial to adhere to the provided guidelines to ensure optimal results and safety during use.