Model # CTTSG3

Internet #100678062

Store SKU #764673

Store SO SKU #1000727371

Custom Building Products SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
0010186772202

Custom Building Products

SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar

  • Ready to use, no mixing, no mess
  • Just spread and set
  • Alternative to traditional thin-set mortars
$49.97 /each

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Product Overview

SimpleSet is a no-mix, no-mess alternative to traditional thin-set mortars. Recommended to bond porcelain, marble, granite, stone, ceramic, mosaic and quarry tile up to 8 in. x 8 in. for interior use only. Can be used with tile up to 18 in. x 18 in., but dry time significantly increases. Dry time will be extended if using larger tiles, bonding to non-porous surface, in high humidity or if temperature is below 60 Degree F.

California residents: see   Proposition 65 information

  • Ideal for smaller format tile installations
  • Spreads quickly and easily with minimal mess
  • Standard dry time for 8 in. x 8 in. tile is 24-72 hours before applying grout
  • Premixed and ready to use
  • Do not apply excess adhesive when installing

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Customer Questions & Answers

7 Questions22 Answers

Customer Questions & Answers

SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar

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5 answers

Can this be used to adhere the backerboard to a plywood subfloor?

This question is from SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
Asked by
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February 5, 2016
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Answers (5)

Asked by
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October 28, 2016
Answer: 
Tried putting down Red Guard to a plywood subfloor and not only did it not dry after 3 days, it soaked the Red Guard so much it was unusable.
Go with dry mortar or you will be doing the job twice.
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Asked by
woodinville wa
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Home Improvement Profile: DIYer
April 9, 2016
Answer: 
I use liquid nails
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Asked by
Salt Lake City, UT, Store #4402
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Home Improvement Profile: Other
March 28, 2016
Answer: 
No. This product is a mastic, NOT a thinset mortar (despite what the description and packaging state). Mastic needs air to dry. It takes weeks to dry under 12"x12"; I wouldn't be surprised if it hasn't dried after MONTHS under 3'x5' backerboard.
You want to use a powdered, bagged thinset mortar to adhere backerboard along with backerboard screws.
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February 10, 2016
Answer: 
No, this product is not suitable for that application.
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February 8, 2016
Answer: 
we would recommend to use a polymer-modified mortar meeting ANSI A118.4 standards, such as FlexBond Crack Prevention Mortar. For further assistance please contact our installation division at 800.272.8786 option 2
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5 answers

Will this adhesive work for installing ceramic tile over an existing ceramic tile floor?

This question is from SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
Asked by
FAirfax VA
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July 21, 2015
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Asked by
Salt Lake City, UT, Store #4402
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Home Improvement Profile: Other
March 28, 2016
Answer: 
I know I'm a little late to the party, but despite what the product specs say this product should not be used on floors. Contrary to the name, this product is NOT a thinset, but rather a mastic. We asked a Custom representative why they call it a thinset mortar rather than a mastic, and they said that it was because people "recognize the name thinset better". Seems a bit dishonest to me, but that's how Read More
I know I'm a little late to the party, but despite what the product specs say this product should not be used on floors. Contrary to the name, this product is NOT a thinset, but rather a mastic. We asked a Custom representative why they call it a thinset mortar rather than a mastic, and they said that it was because people "recognize the name thinset better". Seems a bit dishonest to me, but that's how it is. This product should be treated like a mastic. When used on tiles larger than a few inches, dry time increases SIGNIFICANTLY, since mastic dries as opposed to thinset which SETS (and will even do so underwater - you can use thinset to replace popped tiles inside of filled pools). The air that dries the adhesive mostly comes in from the grout lines. Larger tiles, fewer grout lines, longer dry time. By that same token, you must wait significantly longer than with thinset to grout, since if you don't it'll take even longer to dry. Read Less
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Asked by
woodinville wa
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January 13, 2016
Answer: 
I would always tear up existing tile before laying down another tile.
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Asked by
Charlotte, NC
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September 19, 2015
Answer: 
No, will not dry and your tile put down over the existing tile will keep moving or popping up.
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Asked by
Medway, MA
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Home Improvement Profile: Professional
August 22, 2015
Answer: 
I have not used this material to tile over tile. I have used it to tile over linoleum with good results, I, personally, would never install tile over tile for any reason. It is a bad practice, full of problems. Although it is difficult, and can be costly, taking up old tile and repairing the sub-floor is the only correct way to do the job - just my opinion. If working on a slab, I still maintain removing Read More
I have not used this material to tile over tile. I have used it to tile over linoleum with good results, I, personally, would never install tile over tile for any reason. It is a bad practice, full of problems. Although it is difficult, and can be costly, taking up old tile and repairing the sub-floor is the only correct way to do the job - just my opinion. If working on a slab, I still maintain removing the tile is bestl Read Less
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July 22, 2015
Answer: 
When bonding tile on top of existing tile it is always best to use a portland cement based mortar. Pre-mixed products dry by air only and sticking it between two dense ceramic tile will greatly extend the drying time which will cause delays in grouting. First you must completely roughen the surface of the existing tile and then use a mortar like FlexBond to set your new tile. For further information, Read More
When bonding tile on top of existing tile it is always best to use a portland cement based mortar. Pre-mixed products dry by air only and sticking it between two dense ceramic tile will greatly extend the drying time which will cause delays in grouting. First you must completely roughen the surface of the existing tile and then use a mortar like FlexBond to set your new tile. For further information, please contact our technical service department at 800 272-8786 option 2. Read Less
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4 answers

how many square feet does 1 can of thinset do?

This question is from SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
Asked by
ny
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September 18, 2015
i just want to know approx. how many cans will I need to do a living rook?
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Asked by
woodinville wa
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January 13, 2016
Answer: 
Approximately 175 sq ft. That being the 3 and a half gallon can!
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Asked by
woodinville wa
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January 13, 2016
Answer: 
It of course depends on how thick of a coat you put on and how well you take care of the product when not in use. I used approximately one and a half 3 and a half gallon buckets to do a room 14 ft x 14 ft.
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Asked by
Tenafly
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Home Improvement Profile: Professional
November 8, 2015
Answer: 
If you see in the specs the top section of the website is 175 SF
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September 21, 2015
Answer: 
The coverage on any setting material is based on the size of tile you are setting. There is a material calculator on our website custombuildingproducts.com or you can contact our technical service department at 800 272-8786 option 2 for further information. Unfortunately without knowing the size of your tile i cannot give an accurate answer.
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3 answers

Can you use this Thinset for 12x24 porcelain tile?

This question is from SimpleSet Gray 3-1/2 Gal. Pre-Mixed Thin-Set Mortar
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New York
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August 11, 2016
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Asked by
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October 28, 2016
Answer: 
No. It does not dry effectively. I would only use this on small wall tiles. Learned the hard way unfortunately.
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Asked by
woodinville wa
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August 13, 2016
Answer: 
Yes says so on the label!
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August 12, 2016
Answer: 
No, this can not be used for 12"x24" porcelain tiles.
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Customer Reviews

Rated 3.3 out of 5 by 56 reviewers.
Rated 5.0 out of 5.0 by No problems whatsoever. Worked perfectly! Despite all the complaints about product 'never' drying etc. etc., we had absolutely no problems with it. As do-it-our-selfers we did a tub surround, the bathroom floor and the laundry room floor with perfect results. Mortar stuck tight, dried quickly even with 18" x 18" tiles used and was easy to work with. No problems whatsoever. Worked perfectly! September 4, 2016
Rated 1.0 out of 5.0 by I too just experienced the dreaded slow drying. Used Red Guard as the underlayment following the instructions of mortar, Red Guard, mortar, then tile and it didn't work. Red Guard is so wet that it has pulled away from the mortar on the floor, causing the grout lines to crack. 3 days of dry time and I can literally pull up every tile with a scraper and both the mortar under the tile and the mortar under the Red Guard are still wet. So wet the plywood floor is soaked like a wet toothpick. Do not waste your money. Good news is I took the empty bucket back, and the remainder of the Red Guard and Home Depot gave me a refund for both. Bought both bag mortar and Wonderboard with rock screws and am now going to have to pull everything up and relay it the traditional way. At least it's still wet and I can reuse the tile. What a mess. October 28, 2016
Rated 1.0 out of 5.0 by Will NEVER buy this product again! Set up time extremely slow. 2 days for large format tile, but 5 to 7 days for the mosaic strip that scented the other tiles. Mosaic was thinner and had to lay thicker mortar to level mosaic. Took forever... Talked to some pros, who said they NEVER buy premixed for that very reason. Will always use bags that you mix yourself from now on. lesson learned. October 26, 2016
Rated 5.0 out of 5.0 by Makes life easier Easy to spread. Dries faster to help tile from sliding or shifting. Used 1 bucket to lay over 110+ 12" tile. No rush on it drying out while laying tile or having to keep mixing it like regular mortar when you need more. Just simply open the bucket and ready to go. Little pricy but worth the money. October 2, 2016
Rated 1.0 out of 5.0 by Home Depot Wedsite wrongly graded product - Employees said same in stores Website says it is rated for exterior use and local Home Depot employees at 2 different store said the same thing about product and exterior grade rating - End result 30 hours of labor wasted installing and then removing and cleaning tile Cannot trust Home Depot employees or Web Sit manager to know anything about their products October 16, 2016
Rated 5.0 out of 5.0 by Easy to apply and use Great to have the pre-mix in a pail and mixed to the right viscosity to allow easy application September 13, 2016
Rated 3.0 out of 5.0 by Great if you need to stop before it is all used This was easy to use, no mixing no mess. But you pay more. September 20, 2016
Rated 5.0 out of 5.0 by Good stuff The motor was ready to use. It was a convient size August 30, 2016
  • 2016-10-31 T00:25:11.293-05:00
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