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Custom Building Products

Model # SDS25

Internet # 100093406

Store SKU # 584312

SpeedSet Gray 25 lb. Fortified Thin-Set Mortar

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

$15.47 /  each
Bulk Price Discount Available
This item qualifies for a bulk price discount
if you purchase at least 20 units. The
adjusted price will display in the Cart.


Model # SDS25

Internet # 100093406

Store SKU # 584312

Store SO SKU # 1000400951

SpeedSet Fortified Thin-Set Mortar is a strong polymer-modified mortar that sets quickly for time critical installations. Add water, apply and let the mortar cure for 6 hours. For tile repairs and small jobs. Great for commercial use and cold temperatures. Cures rapidly to allow grouting within 2 hours and traffic within 6 hours.

California residents: see  Proposition 65 information

  • For tile repairs and small jobs
  • Strong polymer-modified mortar
  • Great for commercial use and cold temperatures
  • Cures rapidly to allow grouting within 2 hours and traffic within 6 hours

Info & Guides

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Maximum coverage area (sq. ft.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Additive required 
Color Family 
Commercial / Residential 
Commercial / Residential 
Dry time (hours) 
Floor/wall use 
Floor and wall 
Flooring Product Type 
Mold and mildew resistant 
Product Weight (lb.) 
25 lb 
Product type 
Warranty / Certifications
Manufacturer Warranty 
1 year product 


Rated 4.0 out of 5 by 41 reviewers.
Rated 5.0 out of 5.0 by Time is money. free time is irreplaceable We use this product and other brands of quick set on every job.From walls to floors back splashes to custom mosiac designs ( white and grey color availability if you plan) Remember a chemical reaction is what makes it Harden or flash so be aware of temp and humidity of air, water, and surface. If you are a confident pro or diyr who knows time is money and has the experience being ready to put the hammer down quick set is the way to go. This product allows us to be confident customers, children and pets who wont stay off our work will not cause us re sets. If its your first time be patient and mix small amount by using the math and percentages we were taught in grade school at one time. May 22, 2015
Rated 4.0 out of 5.0 by Good mortar, be carefull with the set time Used this quick-set for a dozens of jobs. Very good bind to plywood, hardyboards, concrete, sheetrock and bricks. The only thing about this mortar is that the set time differs from bag to bag. One time it will be ~30 mins, another bag might give you ~15 mins. So, do your small experiment before you mix a big part of the mortar. May 6, 2014
Rated 4.0 out of 5.0 by Don't follow water quantity on package or site instructions Used it to set porcelain floor tile in main traffic area that we needed to be usable in a short amount of time ( small entry and bathroom). Package states 4qts of water per 25lbs! Only if you want paint consistency. 4qts works for a 25lb bag + 1/2 bag approx. Mixed 50lb thin set before and water recommendation was close so I was in a hurry and thought hey, the manufacturer should know, right? Luckily I had some more bags on hand to remedy easily. Don't attempt to cut as you go with this speed set(1 person crew). I pre-fit and pre-cut my tile. May not be the best way but I wasn't rushing to beat the setup time. Also, online instructions state to let set after mixing 5-10mins to allow it to slake, but package states to use immediately. Use immediately! Haven't called manufacturer to ask about these issues yet. May 25, 2015
Rated 1.0 out of 5.0 by Be careful with the instructions! Was thrilled that the single bathroom in my condo would be out of commission for less time. Mixed up a batch by hand per the instructions on the bag, 4qts of water and no slake time. WAY too loose, wouldn't even hold notches. Thought maybe I should have used a drill and paddle, tried again, same results. Find instructions on the CUSTOM BUILDING PRODUCTS website that say 3 qts and 5-10 minute slake time. Well which is it? 2 bags wasted and I'm out 35 bucks and an entire day. March 17, 2015
Rated 5.0 out of 5.0 by Speed set more like Turbo set I used this product to tile a shower it works great. 13x13 tiles were in place firmly within 5-10 minutes. Don't mix a bunch up at once because it sets quick. July 24, 2009
Rated 5.0 out of 5.0 by Multi-use product! We use speed set for a lot of different emergencies. This product allows us to pre fill hols, cracks, etc and finish coat the same day. It is fast setting and allows us to grout tiles by the end ot the same day. We also use it to form shower pans because it sets up quickly. January 20, 2015
Rated 5.0 out of 5.0 by Easy to Mix, Easy to Install I originally bought the Speedset mortar because I didn't need 50 pounds of regular mortar when I only needed about half of that amount, and I liked the idea of a 2-hour set time to be able to grout soon after the tile was laid. I poured this on HardiBacker for a 60 sq. ft. porcelain tile floor, and while I was concerned with the two hour set time, I was able to complete the tile laying in about an hour and a half and never had to worry about it setting up before I could make last minute adjustments to tile height/spacing. My only complaint was that it is priced almost identically to the 50 lb. bag of regular set mortar, and the only reason I initially ended up going with the Speedset was so I didn't have so much waste left over. January 10, 2012
Rated 5.0 out of 5.0 by Very pleased with product performance. The thin-set mortar was exactly what I needed for repair to some ceramic tile within the downstairs bathroom. Mixing and applying was very easy, set-up was not too fast and the finished product turned out excellent. I will definitely recommend this product to my friends. December 10, 2014
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Store Exclusive. This item is available for purchase in select stores only.