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Concrete Crack Repair Technical Data

crack sealing repair kit

Concrete Crack SEALING Epoxy - Crack Repair HV

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Crack Repair HV Sealing Adhesive is a two component modified epoxy resin adhesive used for crack sealing and general concrete repairing

Part A (Epoxy) Stringy Paste
Part B (Hardener) Stringy Paste
Operable Time (25C) < 50 min
Tensile Strength ≥ 29 Mpa
Compressive Strength ≥ 68 Mpa
Operable Time (25C, min) <50
Touch Dry Time (2S℃, h) 1 - 2
Mix Ratio (by Weight) Part A: Part B=2:1
Thixotropy Index ≥ 3.0
Shelf Life 2 years in sealed packaging

crack sealing repair kit

Concrete Crack Injection Epoxy - Crack Repair LV

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Crack Repair LV Injection Adhesive is a two component epoxy resin based adhesive with low viscosity used for injection and repairing concrete cracks

Part A (Epoxy) Transparent Liquid
Part B (Hardener) Yellow Liquid
Density (g/cm3) l. l 士 0.1
Tensile Strength ≥ 45 Mpa
Compressive Strength ≥ 59 Mpa
Density (g/cm3 l. l 士 0.1
Mix Ratio (by Weight) Part A: Part B=2:1
Viscosity (mPa·s ≤ 300
Shelf Life 2 years in sealed packaging

Installation Procedure for Deep Crack Repairing

Step 1 - Surface Preparation

Clean and Remove oil, grease and other surface defects and contaminants within 5 to 10cm from the crack

Step 2 - Crack Grinding

Grind the concrete crack around 5mm - 10mm in depth by using grinder cut off disc for better adhesion then clean again to remove debris from grinding

Step 3 - Sealing and Attaching of Stopper Tube

Place the stopper tube evenly across the space along the crack within 10cm - 30cm depending on the crack depth and width. For deeper crack, stopper tube must be closer to each other

Step 4 - Air Pressure Leak Test

When concrete Crack Repair HV has been cured, use air pressure to determine if there are any air leaks. reseal any leaks that can be found.

Step 5 - Mixing the Adhesive

Mix Part A and Part B in a 2:1 ratio with a mechanical mixer for 3 minutes until fully mix

Step 6 - Epoxy Resin Injection Application

Inject the Crack Repair LV content using the injector into the stopper tube. injection must start from the lowest level to the highest level. Apply injector step by step when the resin content flow from one stopper tube to another. after curing for 24 hours, remove the stopper tube and grind to make the surface smooth.