Model # 186010050

Internet #204414391

Store SKU #1000021560

Rapid Set 50 lb. CTS Concrete Leveler

Rapid Set

50 lb. CTS Concrete Leveler

  • Ready to walk on in 3-4 hours
  • Install ceramic tile in just 4 hours
  • Easy to use, just add water
$34.97 / each
If you buy 56 or more
$24.48 / each

Frequently Bought Together

Product Overview

Rapid Set Concrete Leveler is a high quality, fast-setting, self-leveling underlayment for your flooring needs. It is ideal for new floor and repair projects when you need long flow life and working time. Concrete Leveler achieves high 24-hour strength and can be covered with finished flooring in 4 to 16 hours at 70 Degree F (21 Degree C), depending on the flooring type. It can be used indoors and outdoors.

California residents: see   Proposition 65 information

  • Apply from featheredge to 2 in. thick neat
  • Apply up to 5 in. thick when extended with aggregate
  • Improves bond strength and adhesion
  • Walk on in 3 to 4 hours
  • Install ceramic tile in 4 hours and other floor coverings in 6 to 16 hours
  • One 50 lb. bag covers 24-30 sq. ft. at 1/4 in. thick for flat surfaces
  • One 50-lb bag covers 12-15 sq. ft. at 1/2in. thick for flat surfaces
  • Learn more about concrete and cement here in our Buying Guide

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

What is the coverage per bag (average expectations)

Asked by: Ducktwo
It depends on how unleveled your surface is. The wed site has in online.
Answered by: paulawill2
Date published: 2017-02-27

Can you use this for building a retaining wall

Asked by: Roger
No you can not use this to build a retaining wall. The max extended thickness of this product is only 5". 5" would not meet code especially on cold areas that have a frost line. The normal max thickness is 1", you can extend it to 5" by mixing in pea gravel. But still not good for a retaining wall. Due to its low tinsel strength, it would crack anyway due to expansion.
Answered by: mike
Date published: 2017-02-15

Can this be used for leveling a garage floor?

I have a single car garage with a low corner ( about 3 x 5 feet and 2inches low)
Asked by: Bmore
Absolutely- It works great for garage floors.
Answered by: Owner01
Date published: 2016-12-29

Can this be used in a mixer that support up to 180 lbs? I would be doing it myself and doing thr...

Can this be used in a mixer that support up to 180 lbs? I would be doing it myself and doing three bags at one time with a mixer would, I believe, make the job go quicker, or is it still too much material to spread around on the floor? Also what would be a good trowel to use with this to get the quarter inch depth required?
Asked by: Terry
No, product works best if you mix a bag at a time in a 5 gallon pal. This allows the mix to liquify. The problem with bulk mixing is the formation of pebbles . If you use a mixer, you are going to have to add 3% sugar to the water . Once in the mixer, you are going to have to rake the mix to activate the liquification agents. This is a lot of extra work and a temptation to add to much water. Get some help and run an assembly line. A person to add water to empty pails, another to put the mix to n, another to mix it with a low rpm mud drill, another to walk the ready to pour batch to the spreader, and a spreader. The person who walks the ready to pour mix to the spreader retrieves the empty buckets and brings them to the water person. Use the exact water ratio.
Answered by: mike
Date published: 2016-12-29
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Customer Reviews

50 lb. CTS Concrete Leveler is rated 4.0 out of 5 by 27.
Rated 5 out of 5 by from I was actually scared to use this stuff after reading all of the negative reviews. At Home Depot ... I was actually scared to use this stuff after reading all of the negative reviews. At Home Depot they had product that was more than one year old, but I took a chance with it. I could not be happier with the result- leveled an entire garage bay that a previous home owner had poorly finished. I used 5 quarts of water- or maybe 5.5 per bag if I wanted a thinner coat. What I did learn is that you have to really mix this stuff well for several minutes (used a 5 gallon bucket, heavy drill, and a drywall joint compound bit) one bag at a time, and you have to rinse the bucket each time to avoid getting chunks. Also don't slam the bucket down (again chunks), just pour it out and spread it with the masonry broom flipped upside down pulling even it from side to side. I would recommend the primer as it kept the air bubbles out. I used two coats in the end, because I had some drips with the masonry broom I was using to spread it (don't pick it up). Poured the second coat 14 hours after the first. I am handy, but no concrete pro. The finish product was a perfectly even floor. This stuff is amazingly durable, and is still curing. I poured with the temp at 50 in the day and 30 at night. It took 11 bags for 260 square feet. It does cure quickly, and its easiest with one mixing and one spreading, but if you move quickly you can do it alone. I learned to just spread it even as quickly as possible, and give it time to level itself for the perfect garage floor. Thanks Rapid Set- one great product!
Date published: 2016-12-29
Rated 5 out of 5 by from Mixes easy but follow the instructions on drill speed at 650 and 3-5 mins. I noticed a slower dri... Mixes easy but follow the instructions on drill speed at 650 and 3-5 mins. I noticed a slower drill speed and/or less mixing created small rock type lumps. You need to wash buckets between mixes to keep lumps down. The 5 quart water mix is stiff if aggregate is used and 5.5 did much better to make it flow. Overall it did a good job I continue to use the product because it's works. It maintained a fluid flow for about 2 minutes after put on the floor and semi self leveled with a squeegee used to help it after that.
Date published: 2017-01-15
Rated 3 out of 5 by from I left an earlier review stating that I was unhappy with the viscosity and work-ability of this p... I left an earlier review stating that I was unhappy with the viscosity and work-ability of this product at the recommended mixing ratio (4.5 L water / 50 lb cement, or 900 mL water per lb of cement). I did some small-scale experimentation with additional ratios and found that 105 mL/ lb (that is 5.25 L for the entire 50 lb bag) gave me much better work-ability without sacrificing the structural integrity of the mixture. Hopefully that saves someone else the trouble I went through. After working with the mixing ratio, I was much happier with the outcome. I am still very disappointed that the recommended ratio results in such a thick product, though. For those reasons, I will revise my rating to 3 stars.
Date published: 2016-11-16
Rated 5 out of 5 by from Great product. In our remodeling project we got few bumpy areas on concrete pad surface which we needed to level for new flooring. I purchased this product among others, because it it can be used for both, thin and thicker layers of leveler. According to instructions on pic.1-3, first we vacuumed all area, then we applied the primer recomanded by Home Depot associate. After primer dried, we mixed the concrete leveler in the bucket with the help of mixer mounted on drill. We poured mix over the bumpy surface and since we needed level few smaller areas we spread the leveler with finishing trowel. On deeper places we used roller with pins in the order to get possible air bubbles out. The leveler mix starts getting thicker immediately after mix is poured, thus make sure, that everything is ready to work with the mix right the way. The mix needs to be helped to spread and roughly leveled, the fine smoothing and leveling is provided by mix itself. It's a great product and great help where needed. It's safer for environment-releases less CO2 then cement. Info on the bag: State of California Proposition 65 Warning. Please, refer to the SDS and for additional safety information regarding this material.
Date published: 2016-04-23
Rated 1 out of 5 by from Improper mixing ratio recommended Very dissatisfied with this product. I mixed in 4.5 liters of water using a graduated beaker and stirred the mixture for 3.5 minutes with a mechanical mixer. looked fluid and uniform in the mixing bucket. However, when I poured it I quickly realized the mixture was too thick. The product did NOT self-level. I would not recommend this product, but if you do use it, be wary of the recommended mixing ratios. If possible, test the consistency of a small sample mixture before making an entire batch.
Date published: 2016-11-07
Rated 4 out of 5 by from Not quite self leveling as indicated in write up. tricky but not impossible to make work So as you can read...there's a mix of good and mix of bad reviews for this product. I bought 36 bags so far so after numerous trial and errors I was able to get it to work. I do agree that the water recomendations on the bag lacks the factors that apparently makes a difference between cake frosting texture and a free flowing mixture. maybe water hardness, clorine in the water, humidity , temps, who knows why folks using the same mix are getting different results. one of the problems is a review resonse says mix for 4 minutes...but the setting time is 15 does that leave 9 minutes to get the stuff laid ouT. I defintely had to use more water than indicated and mixing longer was not a factor in making the suff more fluid.....adding water a little at a time while mixing was the only way to get this to a free flow form...AND this stuff has very limted self leveling capabilities.....I doubt that you would get any self leveling effect if you put more than a coffee can full of this stuff per 2 square feet. The good news is that the stuff seems to balance out and blends well into adjoing areas. Watering this stuff...even with a midl mist seems to be a big mistake...until its fully seems sensitive to watering and the adding of water seems to disolve the surface of the pour resulting in texture changes based on the water spray pattern as well as discoloring the misted areas. The balls of dry mix is a problem and very difficult to eliminate especially if you mix more than a bag of this at a time. This is a very difficult product to use on large areas such as a 15X45 foot garage floor...AND..after using 36 bags of this stuff AM of the conviction that its best suited for underlayment of a bathroom size area where the limitation of mixing one bag at a time and the fast setting time is less of a problem since you could probally knock out a bathroom with 4 bags. LASTLY, why on earth would you make this set fast setting....common sense is that longer setting time would be a plus so that you have more time to work the bugs out and get this a s level as possible. I had to add 3% sugar to this stuff to slow the cure rate down enough so that it would not set too fast. The resulting surface does not look like it can take a lot of foot traffic in an exposed state so I am not quite sure this is really a cement seems very sensitive to water early in the process and the resulting surface looks very fragile. Recomendations would be to buy a bag and try it out and get a good understanding of the mix ratio and product limtations. For the amoun of money over the cost of basic portland cement...the value of what is supposed to be "self-levling" is just not there. Maybe we have to high of an expectation for what "self-leving " is....plain water is self leveling..ketchup is not...this behaves more like ketchup than water. Get yourself some spike shoes so that you can walk over the pour and not have any foot makes a difference when you are re-walking the area to balance out the level of the poor.
Date published: 2016-08-09
Rated 5 out of 5 by from Works Great - don't worry about mixing! So I read the other reviews that were written that say it is "far too thick to pour" and 5qts is not enough water. Let me tell you, 5 qts is PLENTY of water. There is only 2 possible ways that you can mess up the mixing: 1) you are not measuring correctly. Are you confusing pints and quarts? cups and quarts? or 2) you tried to pour the water into the powder. I actually found that 5qts was too MUCH water and caused my mix to be a little too runny. But the instructions do say 4-5qts, so I found after a few bags that about 4.25 quarts achieved the consistency I desired. Seriously, at 5 qts of water, you could mix it up pretty well with just your arm and a paint stir stick. (don't really do this, I'm just pointing out that those previous reviewers really screwed something up if 5qts was not enough water for them). My only negative is that this stuff is EXPENSIVE at $32/bag. But it works great and did what I needed, so I'll probably use it again if I have to.
Date published: 2016-06-26
Rated 5 out of 5 by from Rapid set Works real well and easy to use. Mixed with 5 qts and took little longer to dry, but worth it.
Date published: 2017-02-11
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