ZEP 32 fl. oz. Grout Cleaner and Whitener-ZU104632 at The Home Depot


Model # ZU104632

Internet # 100619266

Store SKU # 256508

32 fl. oz. Grout Cleaner and Whitener

ZEP 32 fl. oz. Grout Cleaner and Whitener

This item has been discontinued.
The Home Depot no longer carries this specific product.

$6.97 / each


Model # ZU104632

Internet # 100619266

Store SKU # 256508

ZEP Commercial 32 oz. Grout Cleaner and Whitener is formulated for use only on floor grout lines. It cleans and whitens grout and removes light rust stains off concrete with little or no scrubbing. It is not recommended for marble, stone, metal or Corian.

  • Use only for cleaning and whitening floor grout lines
  • Bleach-free professional-strength formula cleans with little or no scrubbing
  • Sassafras scent
  • Not recommended for marble, stone, metal or corian
  • Whitens and brightens grout, removing stains
  • Shop all Grout Cleaner

Info & Guides

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Anti-Bacterial or Disinfecting  No  Assembled Depth (in.)  3.43 in 
Assembled Height (in.)  10 in  Assembled Width (in.)  3.43 in 
Bleach Added  No  Cleaning Product Type  Tub/Shower Cleaner 
Commercial / Residential  Commercial / Residential  Concentrated  Yes 
Kills Mildew  No  Manufacturer Warranty  N/A 
No-rinse  No  Product Form  Liquid 
Product Size (oz.)  32  Scent  Sassafras 
Stain Type  Dirt  Surface Type  Tile 
Where to Use  Floors 


Rated 4.4 out of 5 by 55 reviewers.
Rated 5 out of 5 by It returned my grout to its original color We used “Zep grout cleaner and whitener” to clean the grout in our rented apartment that has white tile and light grey grout. The tenants vacated the place after 5 years of living there, and the grout was black everywhere: kitchen, living room and 2 bathrooms. GROSS!!!! A life saver associate at Home Depot recommended this product and even though I didn’t expect any miracles, I figured I’ll give it a try. Here is what I did: 1. GET YOURSELF THE FOLLOWING: * Some gloves and safety goggles. The cleaner is acid and will burn. Don’t let this scare you away, I had some tiny droplets of cleaner splash on my arms and even though it burns, it doesn’t do visible damage, just wash it quickly under the faucet. I wouldn’t want it on my eyes though, so use the goggles. * A grout cleaner brush. Get the one from the tile department at Home Depot, the ones from the cleaning department are not as strong. I went through 3 of these brushes for the whole apartment but the last one is still serviceable. * A grout sponge. At the tile department too, these are big and not as porous as regular cleaning sponges, so they’re great to remove the grossness without it getting embedded in the sponge. * An old spray bottle (I had an empty Windex one around) and pour the grout cleaner in there as it’s easier to control where you are spraying. * A bucket of clean water in standby to rinse the sponge. * A gardening kneeling pad (optional but it will save your knees). 2. APPLICATION: * Spray the cleaner on the grout (I worked in 6x6 sections if possible) I let it sit for a minimum of 5 minutes, sometimes more. * Scrub with the brush and wipe the grossness with the wet sponge. Keep brushing, wiping and rinsing with the sponge until you remove all the crud. Don’t let the crud sit once you scrub it, as it will stain the grout back and you’ll have to repeat the whole process from the beginning. You’ll have to change the water in the bucket often (I changed it after each section). *After I was done cleaning the grout I had to mop the floor 3 times to get rid of the slight haze the cleaner leaves. I used water and ammonia to mop and it did a wonderful job. I noticed the grout was still getting lighter after a few hours had passed, even though it was wiped clean. It didn’t turn the grout white, just to its original light grey. I know it sounds painful and a lot of work, but it returned the grout to how it was when the apartment was brand new. Sooooo worth it!!! August 16, 2013
Rated 5 out of 5 by OMG! Awesome cleaner - low odor - worked on Cream Grout After years of re-cleaning to the point of abuse the same 1/4" cream-coolored grout, I am in love with this product. Cleans 100x's better than the Aqua Mix Grout Deep Clean product I originally purchased. It also has 1/20th the fumes as the Aqua Mix. I was able to use the Zep product in small and open spaces without any noxious fume problems. Below is how I used the product: Supplies: 1. 32 oz bottle cleaned kitchen and small bathroom. 2. Put on dishwashing gloves to save hands. 3. Get plenty of dry old towels or lint-free rags. 4. Bucket of clean water. 5. Several DEP brand grout cleaning brushed with hard white bristles. 6. Smaller bottle with cone shaped nozzle, think the old ketchup dispenser plastic bottles with the pointy spout. How it worked for me. 1. Put on gloves. 2. Transfer liquid from 32 oz bottle to smaller easier to handle 8-12 ounce bottle with pointy spout. 3. Squeeze project onto 4x4 foot grout area. Leave alone for 2-4 minutes - You'll see it actually bubble over greasy or dirty areas. 4. Put towel at end of section of grout joint and with brush push product away from you and your eyes pushing in one direction . Don't brush back and forth, it just pushes dirt back and forth into grout. You're pushing the dirt and grime away from you into your old towel. 5. Rinse brush in clean water bucket and push toward towel again, removing all Zep product. 6. With clean damp towel wipe away any remaining residue. Look at grout, if you missed an area, dab a little more Zep wait about 30 seconds and brush away and wipe up. This was totally safe on my Porcelain tile. This was safe and did not "Bleach out" my cream colored grout. It was a slight "smell", but was able to use it in a small bathroom without any reaction like I would have had to diluted bleach or diluted amonia. It's just a "smell", not a vapor or fume causing headaches. If you notice a red-ish area on your grout - you missed a spot and let the Zep completely dry on that area without fully wiping it away. Simple re-brush it with a clean set DEP brush and wipe clean with damp towel. The "red-ish stain" completely vanishes. It's just residue that needs to be washed off your grout. I LOVE this project. I have tried in the past: 1. Mr. Clean magic eraser - which worked but basically is cost prohibitive to do a whole house and the scrubbing cramped my hands. 2. Clorox bleach - ehh. Stripped the sealer, gave me headaches, but didn't really LIFT the dirt quickly and easily. 3. Amonia - same issue as Clorox 4. Hydrogen peroxide 6% mixed with baking soda. Worked better than Clorox, no odor, but didn't get out STAINS. So in summary, the ZEP was better than my previous attempts. It worked better than Mr. Clean magic erasers with 1/100 the scrubbing and equal to better results. I will not immediately seal the grout with a water based sealer to make the grout easer to clean with simple warm water for day to day cleaning. September 3, 2013
Rated 5 out of 5 by Unbelievable Results My boyfriend brought my grout to my attention - he cleaned a portion with toothpaste, baking soda and bleach. I thought it was dark beige and it is actually supposed to be white! The next trip we took to Home Depot, I purchased this product and my kitchen and bathroom floors look fabulous. It did not show results right away, however; my floors had to dry overnight for the white to come out. I thought it didn't work initially after treating it around 10 at night but the next day I walked in my kitchen and could not believe the treated vs untreated area. I also compared it to Soft Scrub - and there is no comparison as Zep whitens and Soft Scrub made the grout light beige. Buy this product and let me know how it works for you. June 23, 2012
Rated 5 out of 5 by Great Purchase I've been looking forever to fight a good grout cleaner that is easy to use. September 14, 2014
Rated 4 out of 5 by White and Bright I purchased this after seeing a recommendation in Atomic Ranch magazine for what I thought was Zep - but was actually Zap! Porcelain, Fiberglass, Tile, and Grout Restorer by Fuller Brush Co. Despite purchasing a different product from what was reviewed in the article, I was impressed with the job that Zep Grout Cleaner and Whitener did on the grout in my kitchen. (I have white / bone colored grout and near white thru body porcelain 24 x 24 inch tiles.) Being a little bit of a clean freak but not always paying close attention to the directions, here is my advice: * Wear gloves when using this product! I spot tested the grout around a singe corner tile (2 grout lines) without using gloves and found my hands to be dry and cracked the next day. I can only imagine if I tried to complete the entire project without gloves!!! You may want to use goggles as well. * Open windows to ventilate - the odor is moderately strong. * It is impossible to pour Zep from the 32 oz bottle onto JUST the grout - without getting some of the product on the tile itself. I used this method - and my porcelain tile was not harmed; However, you may want to transfer to a bottle that is smaller in which to control application. ON THAT NOTE: Do NOT get on marble! My transition from the porcelain tile to hardwood is actually marble - and it did etch the marble. I will have to refinish and seal the marble transition at some point to fix this. The product specifically states not to use on marble so totally my fault! Passing along the fact that in 3 minutes you can destroy your marble so take the warnings seriously! * I applied the product from the bottle - let it sit 3 minutes then used a toothbrush to scrub before using a wet towel to wipe up. This seemed to work well and got the job done. I only worked a 4'x4' or 6'x6' area per application. (The bottle recommends 2'x2') Have plenty of extra towels handy for clean up. I don't write many reviews but I thought this product did a very good job and I wanted to share my experience. I've tried the Clorox bleach pen in the past - it didn't work that well, seemed to discolor the tile near the grout, and took multiple pens to complete the project - so I definitely prefer this Zep product. (I included some pictures - Sorry, I didn't take any before pics!) November 6, 2014
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