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Hydraulic Cement

Hydraulic Cement

High Strength Concrete Patching Material


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The UNIQUE Advantage for Concrete Repairs

POSTCRETE-GROUT/WS® Hydraulic Cement is hydraulic cement blended with proprietary ingredients. Use to anchor bolts, pipe, ornamental iron, seats, signs, grout base plates, and equipment pads, fill voids, instantly stop running water or seepage through holes or cracks in concrete or masonry walls, pools, water storage facilities, tunnels, fountains, water channels, ponds, and piers. Use to patch mortar joints, cracks, and holes in masonry walls.

POSTCRETE GROUT/WS® Hydraulic Cement from UNIQUE Paving offers a number of benefits including:

  • User-friendly
  • Easy clean-up
  • Stops water, even under pressure
  • 3-5 minute set time
  • Rapid strength development
  • Excellent bond strength
  • Can be top-coated in 24 hours
  • Gets stronger as water tries to penetrate the repair
  • Non-shrink/Volume stable/Non-chloride
  • Freeze-thaw and sulfate resistant
Data Sheet – UNIQUE POSTCRETE GROUT/WS® hydraulic cement




UNIQUE Paving Materials also offers specialized concrete patching materials for specific scenarios.

For virtually any horizontal structural repair application less than 6″ deep, use UNIQUE® High Performance Fast Set Mortar is a commercial-grade, rapid-setting concrete repair mortar. It contains hydraulic cement, graded silica sand and performance enhancing additives. UNIQUE high performance fast setting mortar features high early strength, freeze thaw resistance and up to 15 minutes of working time at 70° F just like our UNIQUE® Highway DOT fast setting concrete.

For structural repairs deeper than 2″, use our UNIQUE® Highway DOT Fast Set Concrete Patching Material featuring hydraulic cement with 3/8″ aggregate added. UNIQUE Highway DOT fast setting concrete features high early strength, freeze thaw resistance and up to 15 minutes of working time at 70° F just like our UNIQUE high performance fast setting mortar.

Need to thinly apply a polymer modified trowel-grade mortar designed to give superior bond, tensile and flexural strength on repairs from 2″ to feather edge? UNIQUE FLEXICRETE® XP Polymer Modified Mortar has increased durability to deicing salts and the high abrasion resistance giving the extra edge needed to succeed on your next concrete repair.

For non-structural overhead and vertical concrete repairs try UNIQUE® Overhead & Vertical Repair Mortar.

UNIQUE’s POSTCRETE GROUT/WS® is a blend of hydraulic cement with proprietary ingredients designed to rapidly stop active water leaks through concrete block, pre-cast concrete walls, concrete floors, cisterns, bulkheads, manhole sewers, wet wells, swimming pools, concrete ponds, etc. For more information, browse our resource library below for product information, safety data sheets and more.

POSTCRETE GROUT/WS® Hydraulic Cement Data Sheet

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