- Produces stain resistant, dense grout joints
- Consistent color without shading or efflorescence
- Better performance and durability than traditional cement grout
- See More Details
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Product Overview
Prism Ultimate Performance Grout sets a new standard in cement based grout technology. Prism's calcium Aluminate cement based formula offers consistent color with no shading regardless of tile type, temperature or humidity. And it will not effloresce. The rapid setting formula results in high early strength and dense joints for the highest stain resistance in grout joints up to 1/2". A unique blend of lightweight recycled glass and fine aggregate sand allows for a smooth consistency that is easy to spread and clean.
- Use to fill joint widths up to 1/2 in.
- Cures quickly, walkable in 4 hours
- Won't mottle or shade regardless of tile type, temperature or humidity
- Use on floors, walls, countertops, tub surrounds, showers and high traffic areas
- Can also be used in submerged conditions (swimming pools, spas, water features and fountains)
- 32% lighter than typical grouts; excellent handling characteristics
- No sealer required
- Contains 15% (by weight) post-consumer recycled material
- Sample colors shown may vary from actual grout; final installed shade can differ based on tile type, porosity, job site conditions and finishing techniques
- Visit the How to Grout Tile Project Guide for tips on completing your grout project
- Check out more grout products from Custom Building Products to find the best fit for your tile project
- California residents
Compare Similar Grout
|  |  |  | |
| Brand | Custom Building Products | Custom Building Products | Custom Building Products | Custom Building Products |
| Name | Prism #60 Charcoal 17 lb. Grout | Prism #644 Shadow 17 lb. Grout | Prism #09 Natural Gray 17 lb. Grout | Prism #646 Coffee Bean 17 lb. Grout |
| Price | ||||
| Ratings | (646) | (646) | (646) | (646) |
| Product type | Cementitious | Cementitious | Cementitious | Cementitious |
| Flooring Material Features | Fast-drying,Moisture resistant,Mold/mildew resistant,No sealing required,Rapid setting,Sanded,Stain resistant | Fast-drying,Moisture resistant,Mold/mildew resistant,No sealing required,Rapid setting,Sanded,Stain resistant | Fast-drying,Moisture resistant,Mold/mildew resistant,No sealing required,Rapid setting,Sanded,Stain resistant | Fast-drying,Moisture resistant,Mold/mildew resistant,No sealing required,Rapid setting,Sanded,Stain resistant |
| Maximum coverage area (sq. ft.) | 1096 | 1096 | 1096 | 1096 |
| Location | Bathroom,Countertop,Exterior wall,Floor,Interior wall,Kitchen Backsplash,Shower,Swimming pool,Tub surround | Bathroom,Countertop,Exterior wall,Floor,Interior wall,Kitchen Backsplash,Shower,Swimming pool,Tub surround | Bathroom,Countertop,Exterior wall,Floor,Interior wall,Kitchen Backsplash,Shower,Swimming pool,Tub surround | Bathroom,Countertop,Exterior wall,Floor,Interior wall,Kitchen Backsplash,Shower,Swimming pool,Tub surround |
| Indoor/Outdoor | Indoor/Outdoor | Indoor/Outdoor | Indoor/Outdoor | Indoor/Outdoor |
| View Product | View Product | View Product | View Product |
Compare Similar Grout
| | | | |
| Brand | Custom Building Products | Custom Building Products | Custom Building Products | Custom Building Products |
| Name | Prism #60 Charcoal 17 lb. Grout | Prism #644 Shadow 17 lb. Grout | Prism #09 Natural Gray 17 lb. Grout | Prism #646 Coffee Bean 17 lb. Grout |
| Price | ||||
| Ratings | (646) | (646) | (646) | (646) |
| Product type | ||||
| Flooring Material Features | ||||
| Maximum coverage area (sq. ft.) | ||||
| Location | ||||
| Indoor/Outdoor | ||||
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Maximum coverage area (sq. ft.)
1096
Product Width (in.)
10.5 in
Details
Color
Charcoal
Color Family
Gray
Commercial / Residential
Commercial / Residential
Dry time (hours)
72
Flooring Material Features
Fast-drying,Moisture resistant,Mold/mildew resistant,No sealing required,Rapid setting,Sanded,Stain resistant
Flooring Product Type
Grout
Flooring Type
Glass,Porcelain,Stone,Tile
Indoor/Outdoor
Indoor/Outdoor
Location
Bathroom,Countertop,Exterior wall,Floor,Interior wall,Kitchen Backsplash,Shower,Swimming pool,Tub surround
Product type
Cementitious
Returnable
90-Day
Warranty / Certifications
Lifetime Warranty
Yes
Manufacturer Warranty
Eligible for Lifetime Warranty
Questions & Answers
128Questions22Answers
Does this need sealed? I’m using it in my bathroom floor and shower walls.
Asked by Chaz April 19, 20212
AnswersPrism Grout does not require sealing. However, we do recommend sealing cement-based grout to help protect against staining. For further assistance please contact us at 1 800 282 8786 option 2.
I had this install and the color turned out lighter than shown? Why?? How can I correct this?
Asked by Carrott April 17, 20212
AnswersIn order for us to give you the best possible answer, we would like to know a few more details regarding your project. For further assistance please contact us at 1 800 282 8786 option 2.
Can i get this in west nyack store today?
Asked by Deborah April 17, 20211
AnswerPlease confirm availability with your local Home Depot store. For further assistance please contact us at 1 800 282 8786 option 2.
My tile manufacturer recommends non sanded grout for my marble tile. My installer recommends this...
Asked by Jazxy3d April 11, 20213
AnswersThis is a far finer sand than with traditional sanded grout. It also sets up very hard and seems more durable than other grout. If you have 1/16 spacers and rounded edge tile this will definitely work. It may be an issue with 1/16 spacers and rectified tile but I just don't have experience there. I think I would go with you tile installer if he has used this in with a similar tile before. It is very durable and non-gritty, that is, much finer sand.
The grout lines seem to have a haze to them. I can’t get it to come off
Asked by Haze March 27, 20212
AnswersIn order for us to give you the best possible answer, we would like to know a few more details regarding your project. For further assistance please contact us at 1 800 282 8786 option 3.
how can I calculate how much grout is needed for 350 sq ft of tile
Asked by Gibby March 24, 20212
AnswersCoverage for Prism Grout will vary depending on tile size and joint width. For further assistance please contact us at 1 800 282 8786 option 2.
How long after grouting can I move furniture back into room? I noticed that it said 4-hrs until i...
Asked by Chris March 22, 20212
AnswersWe would suggest allowing a minimum of 48 - 72 hours prior to moving furniture over Prism Grout. For further assistance please contact us at 1 800 282 8786 option 2,
Is this product come pre-mixed? Or does it require mixing?
Asked by Jim March 22, 20213
AnswersFor small jobs there is premixed grout but for larger jobs just mix it...
can this be used on glass tile?
Asked by DJ March 21, 20213
AnswersYes. It actually contains finely ground recycled glass. The sand in it is very fine and almost like non-sanded grout.
Could this be used to grout quartz pebble tiles on a shower floor?
Asked by twoods March 20, 20212
AnswersTo better have your question answered, please call Custom Building Products at 800-282-8786.
Customer Reviews
May 24, 2021
Wrong Color - Go at least 2 shades darker than color shown.
I bought Platinum for the floor tile. It was the exact color I wanted while wet. Once it dried it appeared white. I had planned to use it on the wall color but decided to get Delorean Gray since it was darker in hopes it would be closer to the color I wanted. I was sadly disappointed when it dried to a 1/2 shade darker than the Platinum - both appear to be white or a hazy LIGHT gray. I mixed to the exact water/grout ratio. I applied as directed. Not sure why or how this happened but will have to learn to like the look. The darker color in the pic is after I had wiped and wet the dry grout (Delorean) and the white grout is the dry. SO disappointed.
by MNMomma
Apr 9, 2021
I decided to upgrade to this grout for my personal bathroom remodel. Having been a tile contract...
I decided to upgrade to this grout for my personal bathroom remodel. Having been a tile contractor I have used a lot of different grouts. This grout was superior to any I've previously used. It mixed smooth and trowels in easy. Cleanup was about the same but the dried grout seemed tougher and much more resistant to possible staining issues.
by JimB
Mar 29, 2021
This grout mixed up very easy. It had a nice uniform color. We purchased the Steel Blue and the c...
This grout mixed up very easy. It had a nice uniform color. We purchased the Steel Blue and the color was very close to what you see online; maybe a tad bit darker. It applied really nicely. I did take several attempts (5-6) to sponge off from the tiles. I would highly recommend this, especially since the sealer is built in.
by KViele
Mar 27, 2021
Wrong color!
I spent a lot of time picking out the grout color I wanted. I ended up going with Platinum. Like some of the other reviews stated, it dried the wrong color! It’s almost white! The color is the right color in some places, and whitish in other areas. The color is not consistent! I spent a lot of money on my shower remodel...now I’m stuck with this grout! I would NOT recommend!
by AMAE
Mar 17, 2021
dries WHITE!!!!! BEWARE!!!
This is supposed to be bone colored. After it dried it was bright white!!!!!! It is lighter than the alabaster which is supposed to be a lighter color than bone! It also dries really fast and is a pain to clean up! It doesn’t wipe up and out of the edges of the tiles well. We matched to the tile in the store and this should have been darker than the tile not bright white!
by KMcAnally
Mar 14, 2021
Worked great with our Daltile Restore Bright White subway tiles. Start small, mix only a small am...
Worked great with our Daltile Restore Bright White subway tiles. Start small, mix only a small amount at a time, this box includes 2 bags. I mixed no more than 1/4 of a bag at a time sometimes even half of that.
by Bryan
Mar 14, 2021
Beware!!!! Color is no where near what is pictured!!!
This was supposed to be bone grout! Look at the color on the box. We also compared the tile to the sample in the store! It came out bright white! I have alabaster in the regular grout which is supposed to be lighter than this and it is darker than this.
by KMcAnally
Dec 12, 2020
My installer really liked this grout. He said it was fast and easy to use. I like it because it d...
My installer really liked this grout. He said it was fast and easy to use. I like it because it doesn’t require sealing. The color is off but fortunately that worked out okay as the Bone is white. There is no beige in it as pictured on the bag. And the color didn’t deepen over time. As others have observed, you may want to consider going with a darker color than pictured on the bag.
by HappyLady2
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