Model # 04020025

Internet #202207958

Store SKU #832225

Rapid Set 25 lb. Mortar Mix
0727096101083

Rapid Set

25 lb. Mortar Mix

  • Structural Strength in just 1 hour
  • High-strength at 7,000 psi
  • Easy to use, just add water
$11.49 / each
If you buy 10 or more
$9.77 / each

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Product Overview

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
  • Use to install windows and repair concrete, stucco and wall
  • 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 25 lb. box yields 0.23 cu. ft.
  • Learn more about concrete and cement here in our Buying Guide

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Customer Questions & Answers

16 Questions19 Answers

Customer Questions & Answers

25 lb. Mortar Mix
25 lb. Mortar Mix

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can a 50/50 ( exterior latex paint & water ) be used to color mix.

This question is from 25 lb. Mortar Mix
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Parsippany NJ
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May 28, 2016
Older masons I understand use to use this process to color mortar mix many years ago. Would this also work with this type of hydraulic cement.
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May 30, 2016
Answer: 
You can color our material using this process.
Thank you for choosing Rapid Set!!
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May 29, 2016
Answer: 
The cement and water mixture must be done first. Once the hydraulic cement is applied and has allowed time to heal, latex paint can be used on it.
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Can this be used to fill in 1/2" or deeper gaps between flagstone?

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May 12, 2016
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May 12, 2016
Answer: 
This material can be applied from 1/2- 6" in depth.
Thank you for choosing Rapid Set
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May 12, 2016
Answer: 
Yes, you can use to fill in 1/2" or deeper gaps.
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Can water be added to the mix to make it more manageable for deep cracks in retaining wall.

This question is from 25 lb. Mortar Mix
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Salem, Or
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May 29, 2015
Crack is 1/2 inch wide and at a 45 degree diagonal. 6 ft. wall 6 inches wide - open on one side - fill dirt on the other. Trying to get as much coverage as possible. Best solution appears if I was to seal the outside crack with plywood and pour the mortar into place in stages.
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May 31, 2015
Answer: 
You can apply our Rapid Set Mortar Mix from 1/2" all the way up to 6" thick in one single application. Our product has an amazing bond strength so you will be able to trowel the Mortar Mix right into the crack and it will reach a 3000 psi in just one hour.
Thank you for choosing Rapid Set!!
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May 30, 2015
Answer: 
Adding extra water will weaken the mortar and lessen its strength.
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Is it possible to get this mortar mix in white cement?

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Manitoba
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August 22, 2016
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August 22, 2016
Answer: 
Our mortar has a very light cement mixed with our Rapid Set CSA cement.
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Customer Reviews

Rated 4.0 out of 5 by 4 reviewers.
Rated 3.0 out of 5.0 by Not for thin applications I used it to smooth over a rough walkway. It was excellent except in one important respect. The sand in the product was very poorly sieved, because small stones were in the mix. So the trowel bumped over those stones and left ridges and drag marks. This isn't a problem for thick applications, but it is not suitable for thin applications. October 17, 2015
Rated 5.0 out of 5.0 by Excellent for CERTAIN Situations First, you need to mix this in SMALL batches because it does set up and harden in minutes. I use it exclusively for floor patches in deteriorating red Mexican tile floors. We'd hack out or cut out the bad tile area and remove the subfloor. Then we''d put in a few joist hangers, 2 x4s and scrap plywood to create a new subfloor between the joists, The distance between the desired finished floor height (i.e., the top of the adjoining tiles) to the top of the plywood surface could be as little as 3/4 inches, though we usually went with an inch or so. Then we'd mix red coloring (concrete dye) with the requisite amount of water you will need for the whole batch (I forget how much water it is per box or bag but the data is on the package) and mix up no more than a gallon of mix at a time using a mortar mixer. You can make it buttery. It's a pain in the rear to mix, but it will mix. Then you pour it in or trowel it in as FAST as you can. Get it out of the mixing bucket (use a 5 gallon bucket) asap. If you have a helper the whole thing goes a lot better. So have your helper clean off the residue asap so you can reuse the bucket. Meanwhile use your trowel to smooth out the cement. You can float this stuff to a degree but it's more a matter of using the trowel to smooth it. It starts setting almost immediately. Within a few minutes you can add your final finish. I use the palm of my hands to get a slightly rough finish that is slip resistant. I call it a palm finish (you push down with your palm and sort of move it back and forth a bit... It looks good but wash your hands asap. You can use a coarse brush or other approaches too, but you will have limited time. Keep it a bit damp too - and note that it throws off heat. One guy I trained to do this would finish it smoothly and then use a striking tool (for brick joints) to carefully carve out fake grout joints. The finished product really did look like Mexican tile at a glance. This might all sound unorthodox but the goal was to replace flooring in restaurants that wouldn't be free to work on until the cleaning crew left (midnight) and could be heavily trafficked upon by 6 am. So this left us about 4 hours to do the demo/removal, subfloor patch up, and cement work. It worked very well for this application and I would expect it to work well for any similar thin shell situation. April 8, 2015
Rated 3.0 out of 5.0 by VERY fast setting You better be a speed demon mortaring machine. Within 20 minutes of mixing, this mortar becomes unworkable. Not recommended for the casual non-professional, and I can't figure out how it would be useful to a professional. You certainly can't mix and use more than a few pounds of it at a time. June 23, 2013
Rated 5.0 out of 5.0 by Very fast setting Very good product. I use it at many occasions. Not for armatures !!! October 11, 2013
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