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Model #0179594000

Store SKU #272760

94 lb. Type S Mason Mortar Mix

  • Used in the application of brick, block and stone
  • Factory-blended for consistency
  • Meets ASTM C270 standards
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Product Overview

Designed specifically for use by masonry contractors, the Spec Mix 94 lb. Type S Masonry Mortar provides consistent batches of type S mortar for applying brick, stone and block. The mortar offers 1,800 psi strength and a 2-hour working time.

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Coverage Area (cu. ft.)
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Product Height (in.)
Product Length (in.)


Color Family
Compression Strength (psi)
Mortar Mix Type
Type S
Product Weight (lb.)
Use Location
Working Time (min.)

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Manufacturer Warranty

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Customer Reviews

  • 4.7
    out of 166 reviews
  • 100% recommend this product
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Showing 1-10 of 166 reviews
Spec mix type s for flagstone
Used spec mix type s easy to use and I like the light grey color after it dries smooth for natural flagstone install.
    • Recommended
    Great results for a first time user setting cap stones on a concrete block retaining wall
    We recently built a retaining wall out of concrete blocks. While we used construction adhesive to bond the concrete blocks together, we made the cap stones from natural sandstone and cemented them to the top of the wall using this masonry mortar. Despite it being the first time I've ever done a masonry job, I found that this was very easy to mix by hand with a small shovel to a consistency I was comfortable working with. Even though it was almost 100 degrees on the day I was installing the cap stones on the wall, the mixed mortar stayed workable for quite a while, allowing me to mix it up in smaller batches as I needed it. I mixed it a little wetter than I needed since it was a very hot day and then let it sit for 5 minutes or so before giving it one more mix with the trowel. I also found that I could keep the unused mix in good useable shape by misting it with water from a pump sprayer if it was getting too dry from the heat. When laying the cap stones, I sprayed the top of the wall with some water before applying the mortar and then scooped out a 'V' down the middle with the trowel tip. I set the sandstone on top and used a rubber mallet to gently tap it into the mortar and ensure it was level. The mortar set up well and there was quite a good suction even when the cap stones were first set while the mortar was still wet. A day later the cap stones were solidly set. Clean up was also easy - In places where the mortar had dropped onto the rough face of the concrete blocks, I just sprayed it with water from the pump sprayer after I set each cap stone (before the mortar had a chance to dry) and brushed it with a nylon nail brush and then sprayed it with water again to stop the light grey mortar from staining the brown colored blocks. I also mixed in some small stones and sand with the mortar in a small batch to help me make up for a shortfall of concrete when I was laying the foundations and it worked very well for this too.
    • DIY
    • Recommended
    5 people found this helpful
    spec mix type S is approved by the city of...
    spec mix type S is approved by the city of Los Angeles and is easy to mix and use
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
                    Showing 1-10 of 166 reviews