- Product details
Completing a concrete hole repair project? Concrex® is the right choice! Concrex® now contains epoxy novolac resin for an even tougher epoxy resin mortar ideal for repairing cracked, spalled, eroded, damaged or peeling concrete floors including bay edges, broken steps and concrete bleachers. Concrex also works great as a concrete hole filler.
Features and Benefits of Concrex® – Concrete Epoxy Resin Mortar:
- Cures to a granite hard finish
- Can be feather-edged up to 2” depth
- Chemical & chip resistant with anti slip properties
- Impermeable & non-dusting
- Will not shrink or expand during cure
- Ready for light traffic in 3-6 hours
- Covers approximately @ a 1/4" thick 9 sq. ft. per 20 lb. kit and 23 sq. ft. per 50 lb. kit
- Can be used for both interior & exterior applications
- 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
Quick LinksSafety Data Sheet_20 lb. Black_A070209
Safety Data Sheet_50 lb. Black_A070212
Safety Data Sheet_20 lb. Silver Gray_A070507
Safety Data Sheet_50 lb. Silver Gray_A070510
Safety Data Sheet_20 lb. Tile Red_A070808
Safety Data Sheet_50 lb. Tile Red_A070811
Safety Data Sheet_20 lb. Navy Gray_A100015
Safety Data Sheet_50 lb. Navy Gray_A100016
Technical Data Sheet
Delivery Time (Days) Standard Primer Required Tack Coat (screeding primer) Usage - Interior / Exterior interior & exterior Usage - Suitable for concrete & metal Usage - Properties incredibly tough granite hard finish, chemical resistant, can be feather-edge to 2” depth (full strength is achieved at ¼”) Usage - Surfaces eroded or damaged concrete, bay edges, broken steps, sidewalks 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) Light traffic 3-6 hr; Heavy traffic, 8-12 hr @ 60-70°F Application - Pot Life (hours) 1/2 to 1 Min Application Temperature (deg F) 50
- Preparation & Application
Surface Preparation: Surfaces should be clean, dry and free of all loose material. Wire brushing or sweeping is generally sufficient. If needed, wash with Concroff® or a suitable degreaser or detergent solution, to remove grease and oil. Rinse and allow to dry.
Priming: Tack Coat adhesive primer is recommended when applying Concrex® as a thin section screed or when applying to smooth, non-porous or metal surfaces.
Mixing: Concrex® 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 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.
How to Mix Concrex
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 in getting a smooth finish to the Concrex®. Concrex is normally applied in thicknesses of ¼-2 inches, but repairs can be feather-edged for a neat finish, as long as the majority of the repair is at least a ¼ inch thick. For repairs deeper than 2 inches, apply in separate layers (allow 6-8 hours between layers for curing) or use Concrex® Deep Fill (which can be applied 1/2-4 inches thick in one layer). There is no need to reapply Tack Coat if building up in layers.
- Case Studies
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