Custom Building Products Sulfamic Acid Cleaner, 1 lb

• ✓Concentrated sulfamic acid crystals
• ✓Removes dried cement and grout residue
• ✓Safe for colored grouts
• ✓Not for marble or polished stone

This concentrated sulfamic acid cleaner comes in crystal form and is designed to tackle tough residue from tile, concrete and masonry. It removes dried Portland cement, grout haze, mortar residue, hard water deposits and efflorescence, while also neutralizing efflorescence and etching concrete.

The crystals dissolve in water for a solution that works across all colors of grout, plus clay pavers and masonry. It is not suitable for marble or other polished stone, and may etch some glazed tile, so check your surface first.

Benefits

• ✓Breaks down dried cement, grout haze and mortar residue
• ✓Helps remove hard water deposits and efflorescence
• ✓Safe for use on colored grouts
• ✓Works on tile, concrete, clay pavers and masonry
• ✓Also etches concrete and neutralizes efflorescence

How to Use

Mix the concentrated crystals with water as directed, then apply to the surface to remove dried cement, grout haze, mortar residue, hard water deposits and efflorescence.

Tip: Use it on tile, concrete, clay pavers and masonry, but avoid marble and other polished stone; test on a small area of glazed tile first as it may etch.