Application is simple…

  • Inspect and remove all debris
  • Drill 10mm hole to intersect crack/joint
  • Insert tip into hole
  • Pump in Hyperflex

Easy, 4-step instructions;

Step 1: Using a 12mm masonry bit, drill at a 45° angle to intersect the leakpath about halfway through the thickness of the substrate. For example, a 15cm thick precast wall should be drilled so the leak path is intersected about 7.5cm back. Drill every 30-45cm along the length of the leaking area.

Tip: For uniform cracks such as cold joints, holes may all be drilled from the same angle. For non-uniform cracks, drill just on one side of the crack and then the other, to ensure the leak path is intersected.

Step 2: Flush hole and crack with water to flush out debris. Attach 1.25cm nozzle to Hyperflex grout tube and push firmly into the pre-drilled holes.

Step 3: Pump gun to inject Hyperflex. Cease pumping when you get a show of material coming out of the leaking area. Move to the next hole and repeat.

Tip: If it appears the Hyperflex is washing out of the crack prior to reacting, pack the void by using burlap or a similar material, pushing it into the crack using a putty knife or a screwdriver. This will keep the Hyperflex back in the crack system and give it time to react.

Step 4: After material is fully reacted, either break or cut the nozzle ends flush to the substrate. Material will react out through the nozzle. This is normal.

Additional application tips:

  • If material is reacting very slowly, heat tubes to at least 20°C in a bucket of hot water prior to use.
  • It is important that water be present for the reaction to take place. Make sure area to be grouted is wet.
  • For fast flowing leaks where Hyperflex washes out, it may be neces­sary to use SealGuardII Dual Component Urethane