Model # CBTSG50

Internet #100166653

Store SKU #610003

Custom Building Products CustomBlend Gray 50 lb. Standard Thinset Mortar
0010186405841

Custom Building Products

CustomBlend Gray 50 lb. Standard Thinset Mortar

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

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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. For increased performance, use Custom Building Products' Thin-Set Admix Concentrate or Thin-Set Mortar Admix when bonding dense tiles (porcelain and glass) or setting over Exterior Grade Plywood (EGP), existing tile and for exterior applications.

California residents: see   Proposition 65 information

  • For installations over concrete floors
  • Mix with Thin-Set Admix for higher bond strengths
  • Covers up to 90 sq. ft.
  • 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

22 Questions30 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

CustomBlend Gray 50 lb. Standard Thinset Mortar is rated 3.4 out of 5 by 29.
Rated 1 out of 5 by from 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.
Date published: 2016-08-15
Rated 5 out of 5 by from Female DIYer and Schluter Systems Kerdi Waterproofing membrane Remodeling a bathroom for a fella that's clueless and can't read directions. Contractors told him $15,000 for his bathroom remodel. I'm doing the entire thing for under $4,000 and that includes all new plumbing including the poo pipe, new vanity and hardware, and I had to re-stud the walls. I used Kerdi waterproofing membrane for the shower and it specifically calls for NON-MODIFIED Thin-Set Mortar. I ONLY used this mortar on the Kerdi and guess what, no issues. Grab onto the handle of the soap dish and it doesn't even budge. I wouldn't use this product on the drywall, I used Versabond for that. Read the directions and understand the application. Kerdi calls for non-modified mortar.
Date published: 2016-09-16
Rated 1 out of 5 by from 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.
Date published: 2016-02-08
Rated 1 out of 5 by from 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!
Date published: 2016-08-09
Rated 5 out of 5 by from Thinset Worked great had no problems. Used it to lay down some natural stone slate tiles.
Date published: 2016-10-25
Rated 5 out of 5 by from Does the job! Im pleased with it because it is doing the job i need it to do.
Date published: 2016-08-09
Rated 1 out of 5 by from 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.
Date published: 2016-02-08
Rated 1 out of 5 by from Look elsewhere if this is for a Schluter project that requires unmodified thinset First of all, I am not commenting on the quality of this when used with an admixture. ONLY when using it as-is, which is what you should be doing with certain projects involving certain Schluter products. I really can't believe this is all Home Depot carries. If you're doing a Schluter project that requires unmodified thinset (without admixture) look elsewhere. This is a low-quality thinset for such projects. Find yourself some Laticrete 317, Megabond, Pro-Spec PermaSet, TEC Full Set Plus, or Schluter's own Ditra Set. If someone from Home Depot sees this, please get one of these other brands!
Date published: 2015-08-11
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