Message to Our Customers

Rapid Set

Model # 04010055

Internet # 202188453

Store SKU # 383759

55 lb. Mortar Mix

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

$14.99 /  each
  • Sets in just 15 minutes
  • Structural Strength in just 1 hour
  • Easy to use, just add water


Model # 04010055

Internet # 202188453

Store SKU # 383759

Rapid Set Mortar Mix is a high quality mortar that is suitable for vertical and overhead applications. It is ideal when rapid strength gain, high durability, and low shrinkage are desired. Use Mortar Mix for general and structural concrete repair, stucco and plaster repair, one-coat exterior plaster, mortar beds, underlayment, and formed work. Mortar Mix sets in 15 minutes and is ready to drive or build on in one hour. Durable in wet environments, it can be applied from 1\2 in. to 6 in. thick. Mortar Mix is a blend of high performance Rapid Set cement with quality sand. Mortar Mix offers superior resistance to chemical attack. It is non-metallic and no chlorides are added. Mortar Mix allows the repair areas to be painted, coated, or sealed quickly after application. Under dry conditions, water-based coatings such as latex paint can be applied after the product is hardened, which usually takes one to four hours. Solvent-based and impermeable coatings such as oil based paint and epoxy can be applied in 16 hours.

California residents: see  Proposition 65 information

  • Fast setting — hardens to structural strength in 1 hour
  • Ultra durable — over 6,500 psi ultimate strength
  • Crack resistant, long-life formula
  • Bonds to concrete, brick, stone and many other surfaces
  • High performance, eco-friendly hydraulic cement formulation
  • Easy to use — just add water
  • Meets ASTM C928 requirements
  • One 55 lb. bag yields 0.5 cu. ft.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Color Family 
Compression strength (psi) 
Mix Type 
Fast Setting,High-Strength 
Product Weight (lb.) 
55 lb 
Vertical/overhead use 
Working time (min.) 
Warranty / Certifications
Manufacturer Warranty 
1 Year Limited Warranty 


Rated 4.0 out of 5 by 21 reviewers.
Rated 5.0 out of 5.0 by BEST MORTAR EVER MADE! Trying to save a deteriorating cellar foundation wall from the early 1940's. The walls were power washed and had/have areas that have lost 2" to nothing over the years from water and plain lack of maintenance. I purchased a couple 55 lb bags and started repairing the cracks and loose areas that required mortar repair prior to parging. That time consuming task did cause me to loose 3/4's of the first bag. Then I re-read the instructions and went and purchased the "SET CONTROL" packs and used one per 55 lb bag. Then two per bag. You must add it to the water BEFORE you add the mortar. Once I got the directions correct it went on like butter and I have since used 25 - 55lb bags and almost 50 of the Set control packs. Let me tell you, there is nothing out there that works like this. The walls are like steel and I am showing a few tradesmen the difference between this and just using standard S or N type mortar for walls in this condition. I have also replaced 1 pint of the water with 1 pint of concrete latex bonder and sprayed the wall prior to applying the mortar with bonder following the manufacturers directions for that as well. Finished well with spraying with light water and using a mag float but you must be appreciative of the set time. See the before and after pics of two of the walls we are working on. September 5, 2013
Rated 4.0 out of 5.0 by Work with small batches at a time This product is fantastic for vertical applications and doesn't need any forms. My only problem with it, which can be a gift and at the same time a curse, is the speed at which it sets. Essentially within 10 minutes it becomes unworkable so you either need to work with small batches or be extremely fast. To that point, even the fastest will find themselves tested when attempting applications of a few square feet or more. Final note, help water cure with a spray bottle for the first hour, as suggested by the manufacturer - and, the use of a waterlogged sponge is extremely useful for smoothing out and levelling work which buys you some time at the back end of the job to about 15 minutes of workable time. June 29, 2013
Rated 5.0 out of 5.0 by Great Product The product works just like it say - RAPID. I bought it specifically because it is quick and only mixed what i knew i could use in a short amount of time. Anyone who gives this product a bad review because it is quick setting should go back to school. The products name is RAPIDSET!!!!! April 26, 2014
Rated 5.0 out of 5.0 by Solid and tight We used this mortar mix to repair and add on to our rock wall in the front. It set the rocks solidly, with a nice finish in between. The repaired area is not even noticeable, and the new section looks great! May 22, 2015
Rated 5.0 out of 5.0 by Great product This mortar mix is exactly what the doctor ordered. It applies smoothly with the flow control added to the water before mixing with the mortar and it was easy to work with. It did dry quickly and hard but that was the desired result and I thought it was perfect for all repair projects! April 16, 2012
Rated 5.0 out of 5.0 by Follow directions and it works great! I used this stuff to fix my outdoor foundation that had some bad scaling. I used the additive that let's you work longer with the mix which was sold right next to the bags at Home Depot. I had about 35 minutes to work with each 55 pound bag (it was about 80 outside) which was more than enough time just make sure you are prepared to work as soon as you mix it. September 10, 2014
Rated 5.0 out of 5.0 by Super Product! I periodically 'point up' selective mud joints on my stone house and backyard barbeque grill, and have used a number of different products over the years. Nothing begins to compare to this product. I mixed small amounts as I went, and did not have any problem with it setting up too soon. Its easy to work with, and sets up 'rock' hard. I keep a bag of this stuff on the premises at all times. Super product! November 5, 2013
Rated 5.0 out of 5.0 by It holds bricks together... I guess it's doing it's job. Easy to mix in small or large quantities. If you're trying to match an existing job, test it first - it dries a kind of warm tan color that didn't match what I was working with. April 10, 2012
  • 2015-06-01T11:02:34.775-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_21, tr_21
  • loc_en_US, sid_202188453, prod, sort_default
2 >>


Store Exclusive. This item is available for purchase in select stores only.