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Watco manufactures industrial strength floor paints, repair materials and non slip products

Concrex® Rapid Set - Epoxy Repair Mortar

Concrex® Rapid Set - Epoxy Repair Mortar

$140.00 From

Extra fast cure incredibly strong epoxy repair mortar for heavy industrial use on concrete and brick. Ideal for cracked, spalled, eroded or damaged floors, bay edges and broken steps.

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$140.00 From
Product Details
Use Concrex® Rapid Set for busy areas where minimal downtime is essential. It is simple to use and has all the advantages of our best-selling original Concrex®.

Features and Benefits of Concrex® Rapid Set – Concrete Epoxy Resin Mortar:

  • Extra fast-curing epoxy repair mortar for heavy industrial use
  • Ready for heavy traffic in 4 to 6 hours at 60-70°F
  • At a 1/4" thick covers approximately 9 sq. ft. per 20 lb. kit & 23 sq. ft. per 50 lb. kit
  • Navy Gray color
  • Suitable for Concrete and Metal
  • For use on interior and exterior substrates
  • Provides excellent chemical resistance & anti slip properties
  • Cures to a virtually indestructible granite hard finish
  • Can be feather-edged up to 2” depth
  • Impermeable & non-dusting
  • Will not shrink or expand during cure
  • Tools: Tack Coat Primer (required for screeding), Finishing Trowel, and Mix & Apply Margin Trowel

    Concrex is far stronger than Concrete.
    Comparison over 28 days
    Tensile Strength  Concrex 2234 psi     Concrete 493 psi  
    Flexural Strength  Concrex 8108 psi    Concrete 1001 psi  
    Compressive Strength   Concrex 8006 psi    Concrete 4322 psi  

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    Safety Data Sheet_20 lb. Concrex Rapid Set_A110017
    Safety Data Sheet_50 lb. Concrex Rapid Set_A110018
    Technical Data Sheet
  • Specifications
    Appearance flat finish
    Delivery Time (Days) Standard
    Primer Required Tack Coat (screeding primer)
    Usage - Interior / Exterior interior & exterior
    Usage - Suitable for concrete & metal
    Usage - Properties fastest-setting Concrex® Formula, incredibly tough granite hard finish, chemical resistant, can be feather-edge to 2” depth (full strength is achieved at ¼”)
    Usage - Surfaces floors, steps, ramps
    Coverage (sqft per kit) approximately 9 sq. ft. per 20 lb. kit at 1/4" thick or 23 sq. ft. per 50 lb. kit at 1/4" thick
    Application - Curing Time (hours) ready for heavy traffic in 3 hours at 60-70°F
    Application - Pot Life (hours) 30 min. to 1 hour
    Application - Recommended Coats can apply second coat if thicker than 2"
    Max Application Temperature (deg F) 90
    Application - Application Condition clean, dry and free of all loose material
    Min Application Temperature (deg F) 50
    How To Apply
    Surface Preparation: Surfaces should be clean, dry and free of all loose material. Wire brushing or sweeping is generally sufficient. If needed, wash with Bio-D®, or a suitable degreaser or detergent solution, to remove grease and oil. Rinse and allow to dry.

    Priming: A primer is not usually required if patch or crack repairing. Tack Coat adhesive primer is recommended when applying Concrex® Rapid Set as a thin section screed or when applying to smooth, non-porous or metal surfaces.

    Mixing: Concrex® Rapid Set should be stored at an ambient temperature above 50°F for approximately 8 hours prior to use. Do not use material if air and surface temperatures are below 50°F. Each pack of Concrex® Rapid Set contains aggregate pre-blended with resin and the curing agent. Do not mix inside the plastic bucket. Wearing protective gloves, tip the aggregate on to a mixing tray or board. Shake the containers of curing agent thoroughly until the liquid is a uniform color. Form the aggregate into a mound and leave a small hole in the middle. Empty the curing agent into the hole, ensuring the container is completely drained. Carefully mix the aggregate with the curing agent using a trowel until a smooth mortar is obtained, this will take several minutes. The more thorough the mixing, the ‘wetter’, smoother and more manageable the mix becomes. Alternatively, you can knead the mixture by hand, but you must wear suitable gloves. It is important to mix thoroughly until you achieve a consistent color.

    Application: Place mixed material into the area to be repaired and spread out and finish with a steel trowel. To reduce ‘drag’ on the trowel, wet the blade with mineral spirits. This will aid getting a smooth finish to the Concrex® Rapid Set. Concrex Rapid Set is normally applied in thicknesses of ¼ to 2", but repairs can be feather-edged for a neat finish, as long as the majority of the repair is at least a ¼" thick. For repairs deeper than 2", apply in separate layers (allow 6-8 hours between layers for curing) or use Concrex® Deep Fill (which can be applied 1/2 to 4 inches thick in one layer). There is no need to reapply Tack Coat if building up in layers.

    COVERAGE: Approximately 12 sq. ft. per 20 lb. kit at 1/4" thick.
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