0010186405841

Custom Building Products

Model CBTSG50

Internet #100166653

Store SKU #610003

CustomBlend Gray 50 lb. Standard Thinset Mortar

$6.97 / each
If you buy 20 or more
$6.27 / each
  • Non-modified mortar
  • For installations over concrete floors
  • Mix with Thin-Set Admix Concentrate for higher bond strengths

Frequently Bought Together

Product Overview

Custom Building Products CustomBlend 50 lb. Standard Thin-Set Mortar offers economy with good bond strength for most tile projects and is recommended for floor installations. Good for setting Saltillo and other similar clay pavers. Offers good working time to apply and adjust tiles.

California residents: see   Proposition 65 information

  • For floor installations, basic tile jobs and to set saltillo or clay pavers
  • Dries in 24 hours for good working time
  • Covers up to 100 sq. ft.
  • Mix with Acrylic Mortar Admix (not included) for best results or when setting dense tile and over EGP plywood, existing flooring and for exterior applications
  • Meets ANSI A118.1 without additives and meets ANSI A118.4 and A118.11 when mixed with Acrylic Mortar Admix



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Customer Questions & Answers

20 Questions28 Answers

Customer Questions & Answers

CustomBlend Gray 50 lb. Standard Thinset Mortar
CustomBlend Gray 50 lb. Standard Thinset Mortar

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3 answers

Can this be used applying tile against a hardibacker board as is without additive?

This question is from CustomBlend Gray 50 lb. Standard Thinset Mortar
Asked by
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December 8, 2015
I already used it against hardibacker and I'm concerned if it will hold up? It seemed to adhere well.
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Answers (3)

Asked by
Pittsburgh PA
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Home Improvement Profile: DIYer
February 8, 2016
Answer: 
It will for a while. But overtime it will become brittle and break. I would go with one of the 15$ options.
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Asked by
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February 7, 2016
Answer: 
Yes it can, but I would avoid using this product without admix as it has very poor bond strength. If you need an unmodified thinset you can use Custom's Uncoupling Mat Mortar or Laticrete 272. Assuming you don't need an unmodified thinset, save yourself the hassle and end up with much better results by using a modified thinset like Custom's Versabond or FlexBond, both are excellent and bond far better to Read More
Yes it can, but I would avoid using this product without admix as it has very poor bond strength. If you need an unmodified thinset you can use Custom's Uncoupling Mat Mortar or Laticrete 272. Assuming you don't need an unmodified thinset, save yourself the hassle and end up with much better results by using a modified thinset like Custom's Versabond or FlexBond, both are excellent and bond far better to every type of tile and substrate. Read Less
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December 10, 2015
Answer: 
CustomBlend mixed without the Thin-Set Mortar Admix meets ANSI A118.1 specifications and can be installed over most cement backerboards. Please verify with HardiBacker that it would qualify for their systems warranty. For further assistance please contact our installation division at 800.272.8786 option 2.
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2 answers

Can this be used to lay bricks?

This question is from CustomBlend Gray 50 lb. Standard Thinset Mortar
Asked by
Los Angeles
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February 22, 2016
I need to build a small brick pit on a concrete floor.

will this work?
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February 24, 2016
Answer: 
CustomBlend Standard Thin-Set Mortar is not recommended to set brick in a fire pit. For further assistance please contact our installation division at 800.272.8786 option 2
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February 23, 2016
Answer: 
Yes, this can be used with clay bricks or pavers.
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2 answers

What is the pot life mixed with the admix?

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January 31, 2016
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February 5, 2016
Answer: 
No, this product does not contain admix.
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February 2, 2016
Answer: 
CustomBlend Standard Thin-Set Mortar has an approximate pot life of 2-3 hours. For further assistance please contact our installation division at 800.272.8786 option 2
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2 answers

Can this be used for laying natural stone indoors?

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January 31, 2016
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February 5, 2016
Answer: 
Yes, Natural Stone tile is a suitable tile type for CustomBlend Standard Thin-Set Mortar depending on the specific type of natural stone tile .
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February 2, 2016
Answer: 
Natural Stone tile is a suitable tile type for CustomBlend Standard Thin-Set Mortar depending on the specific type of natural stone tile and whether or not the Thin-Set Mortar Admix is being used. For further assistance please contact our installation division at 800.272.8786 option 2
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Customer Reviews

Rated 3.2 out of 5 by 27 reviewers.
Rated 1.0 out of 5.0 by steam shower membrane I'm installing a membrane for my steam shower and it called for unmodified thinset. I picked up a bag about 6 months ago and finally got around to doing the install. the darn stuff never set... I've made stronger sand castles. I checked the bag and suspected that it was a bad return, even though it didn't have lumps. a sticker was covering the manufacture date and it was made in 2008.... my bad.... round 2.... hosed off membrane, scraped sand off shower pan, and mixed up a fresh batch. this bag, and the other bags on the pallet were manufactured 15.10.23.... should be better.... nope! went to the website and found 404 error, so I can't email them... called the 800 number on the bag and got someone's voice mail. I've had great success with their regular modified thinset and the large format porcelain tile thinset, but this stuff is terrible! August 9, 2016
Rated 1.0 out of 5.0 by No Adhesion Mixed this this according to instructions, and applied to dampened backer board. However, was able to peel off Schulter Kerdi membrane from backer board with no effort after it set. August 15, 2016
Rated 5.0 out of 5.0 by Does the job! Im pleased with it because it is doing the job i need it to do. August 9, 2016
Rated 1.0 out of 5.0 by Awful. Save yourself doing the job twice and get any other option So I used this product for 3 rooms of my house last year. One I have redone, the others are on my to do list. It does not stick well to the tiles or backerboard. I did not use the admix, which it claims "for higher bond strengths". I honestly believe they should rephrase it, "for ANY bond strength use the admix". The best thing I can say about this product, is that due to its weak bond strength, it makes tearing it out very easy. Obviously because you are going to replace it later with a better product. All the rooms I redid using other products have lasted with no problems. So I have a high level of confidence that the problem was using this. February 8, 2016
Rated 1.0 out of 5.0 by Terrible for tile adhesion We installed tile in all three bathrooms using this thinset. We own a tile saw and have done various projects including a kitchen and bathroom for a family member. Saw this on the shelf and the Home Depot employee said it would work for our bathrooms. It was easy to mix with the drill bit and spread easily as well. Within the first year of installation, we started hearing a weird noise like scraping sand whenever we walked on the tile. Large chunks of grout began falling out. We used unsanded grout due to thin grout lines so we thought that was the issue, even though many people told us we could use unsanded on the floor. I spent hours chipping away the old grout in the half bath then grouted with sanded. Not long after the problem is back. I realized it must have been this cheap, sandy thinset. Went to the website and read reviews with the exact same issue. What a waste of time, money, and resources. I'm going to have to completely redo all three bathrooms. April 25, 2016
Rated 5.0 out of 5.0 by Great product! Use both parts. Those who are having issues with adhesion should be using both parts of this. Don't be cheap, or you'll get what you pay for. I use this product, with thinset mortar admix, I cut it with water as well, but not too much, and lay my tile. This product works very well with uneven natural slate as well as other materials. I lay directly to concrete or backer. Again, don't be cheap. You get what you pay for. So to those complaining about adhesion, it's cause they were cheap. Do it right the first time. I'm not saying this is the end all be all, but if you want a solid set, especially with uneven product, this is it. I do coat the back of the tile as well. Use a good notched trowel, be patient, you'll have a great finished product. Also, I use gray mortar with white grout, it doesn't make a big difference if your spaces are deep and you're not heaving excess mortar on floor. November 12, 2014
Rated 4.0 out of 5.0 by works fine with kerdi Im not sure why some people are having problems using this with Kerdi. I put ceramic tiles on my Kerdi with this unmodified thinset. No problems at all. If Home Depot would stock a higher quality unmodified thin set then i would buy it but they dont. They do sell an unmodified thin set for "Uncoupling Membranes" such as Ditra and Kerdi but its usually not an "in-stock" item. This stuff is good in a pinch but if you can buy Tec or Laticrete then i would go with that. January 15, 2016
Rated 1.0 out of 5.0 by Won't work well with Schluter products This is a review of the product without the use of admix, as I was working on a pair of projects using Schluter products that call for unmodified thinset. This product on its own has almost zero bond strength even when fully cured. The mix must be a very high sand content with little Portland cement, as it flakes away very easily when dry, and does a very poor job holding the membrane or the tile. After having now compared this product to Custom's higher quality unmodified (called Custom Uncoupling Mat Mortar) and Laticrete 272 (their high quality unmodified thinset) I'm curious why Home Depot doesn't stock one of these far superior products in store. Both the Uncoupling product from Custom and the Laticrete have excellent bond strength and make a world of difference when using Schluter products (either Ditra or Kerdi) so I strongly recommend finding one of these two products and avoiding Custom's budget Customblend. Home Depot will ship the Uncoupling Mat Mortar product to their stores for free, so as long as you don't need the thinset immediately I'd go that route in the future. February 7, 2016
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