1. Drill 16mm diameter holes at 100-500mm intervals along the side of the crack or joint, at a 45º angle in order that the path of the crack or joints intersected in the center of the concrete slab or wall. The distance between holes will depend on the size of the crack or joint to be injected.
   
   

2. Insert the mechanical packers into the 16mm diameter holes and tighten securely.
   
   

3. Using a clean and dry bucket, pour in the Foam Grout or Foam Flex XP-1 to the desired amount. Add the Foam LYST (catalyst) gradually - average recommended at 5% ( 5 : 100 ). Stir well. Increase the dosage if rapid curing is required.
   
   

4. Commence injection using either a FG GROUT PUMP (manual) or YK-MES1000/2000 electrical grout pump, ensuring that the crack  is filled. The material must be visible during the initial set stage (yellow coloured expanding foam). Always return to previously injected packers and re-inject to ensure that the material is completely compacted.
   
   In the event of filling vertical cracks or joints, commence grouting from the bottom. In case of horizontal cracks or joints, begin from either side.
   
   Inexperience operating the pump may cause it to clog. Increase operating speed may be required if a large amount of catalyst is used.
   
   

5. Allow the grout to cure for 24 hours before removing all packers. Exposed, Solidified grout will be visible. Plus all holes with a suitable mortar.
   
   

6. It is recommended to flush the machine with non-flammable solvent after used.
   

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