Black Diamond Stoneworks Ultimate Grout Cleaner – Acid-Free Deep Clean for Tile, Ceramic, Marble (1-Quart)

Revive grout and tile with an acid-free deep cleaner

Black Diamond Stoneworks Ultimate Grout Cleaner RTU delivers a penetrating clean for grout and surrounding tile surfaces without the harsh effects of acidic formulas. Its acid-free composition is gentle on colored grout and safe for ceramic, porcelain, and many natural stones when used as directed. Whether you’re touching up kitchen backsplashes, bathroom showers, or entryway tile, this cleaner is designed to simplify stubborn grime and restore brighter grout lines. In addition, it can be used with grout steam cleaners for larger areas, offering flexibility for different cleaning routines.

How it works

The cleaner penetrates grease, dirt, oil, and soap scum, helping to loosen deeply embedded soil. To use, spray onto grout or tile, let stand for 1–3 minutes, then agitate with a grout brush and rinse with clean water. The formula is strong, so avoid painted surfaces. Made in the USA, it is designed for kitchens, bathrooms, and beyond where a fresh start is desired.

• Powerful grout cleaning with a professional-strength, acid-free formula that deep cleans without harsh chemicals.
• Safe for colored grout and delicate surfaces like marble, granite, and ceramic when tested first.
• Restores original grout color by lifting entrenched grime and re-energizing bright lines.
• Versatile application: use with grout brushes or steam cleaners for targeted or whole-room cleaning.
• Designed for kitchens, bathrooms, and beyond—great for everyday use in busy homes.

Tips for best results

• Test a small, inconspicuous area before full application.
• Spray on grout, wait 1–3 minutes, then agitate with a brush.
• Rinse with clean water; avoid use on painted surfaces.
• For large spaces, pair with a grout steam cleaner for efficiency.

Real-life scenarios

Imagine bright grout lines along a busy kitchen backsplash after meal prep, or renewed shower grout where soap scum accumulates. This cleaner aims to refresh grout color and brighten tile edges without aggressive chemical scents.