Spills should be wiped up immediately upon occurrence with a paper towel or cloth.
If a stain remains, scrub the grout surface with warm water and a white nylon scrubbing pad, for at least 60 seconds.

For stubborn grout stains on natural stone installations:

Contact Technical Support for more specific instructions at:

1-866-614-7688

Monday thru Friday 8:00 AM – 5:00 PM Central Standard Time

For stubborn grout stains on ceramic and porcelain tile installations:

For stubborn stains, dampen the grout and sprinkle Comet Powder Cleanser (in green container) on surface. Let it sit for 15 seconds, then scrub with a white nylon scrubbing pad for at least 60 seconds and rinse. If a second scrubbing is required, sprinkle on Comet Powder Cleanser, and let stand for at least one minute, before scrubbing and rinsing.

If the stain still remains contact Technical Support for more specific instructions at:

1-866-614-7688

Monday thru Friday 8:00 AM – 5:00 PM Central Standard Time

 

Note: Before using any cleaning product on tile or grout, always test clean a small inconspicuous area and allow to dry to ensure compatibility of the cleaner with the surface to be cleaned. Comet Powder Cleanser is not recommended for cleaning unsealed or unglazed tile, and many types of stone.