Step 1: PREPARATION

a. Lay plastic or drop cloth around work surface (if needed)

b. Grind across the surface of the crack to ensure it is smooth

c. Remove all loose concrete & debris

Tools: Grinder, plastic, dropcloth, or tape

Step 2: CRACK LOCK LOCATIONS

a. Install the first Concrete Crack Lock™ (CCL) as close to the beginning of the crack as
possible

b. The CCL should be installed every 8” to 12” (20 cm to 30 cm) roughly perpendicular to
the crack. Vary the angle slightly to reinforce the crack in all directions.

c. Center the CCL to the crack and trace the outline of the CCL

Tools: Marker and measuring tape

Step 3: CUTTING

a. Using the tuck point grinder with a .08” (2 mm) thick blade, make the cut across the
crack for the Concrete Crack Lock™

b. The cut should be around 5/8” deep to provide approximate 1/8” (3 mm) cove over
the CCL

c. Make sure the cut is full depth from hole location to hole location

Tools: Tuck point Grinder

Step 4: DRILL

a. Line the Concrete Crack Lock™ ends up with the cut

b. Mark and drill the holes the same depth as the cut

c. Drill 1/2” (13 mm) holes at each end of the cut where the Concrete Crack Lock™ will be
inserted

Tools: Drill, 1/2 inch masonry drill bit

Step 5: INSTALL

a. Fill the cut and holes with the RCF High Strength Anchoring Epoxy Paste

b. Insert the Concrete Crack Lock™ into the cut and work it in to ensure all voids around the CCL are completely filled

c. Top off the cut with the RCF High Strength Anchoring Epoxy Paste until it is even with your concrete surface

d. Scrap away any excess and apply to the crack or the next CCL location

Tools: Putty knife

Step 6: FINISHING PRODUCT (optional)

a. If the product settles you can add more epoxy to the cuts. You can grind any excess epoxy off with a grinder once it has cured

b. Once RCF High Strength Anchoring Epoxy Paste has dried and all clean up/grinding has been done, you can paint or seal over the repair