Ezefil 600-700

Remove all dirt, grease and loose particles from the crack, Crack should be clean and sound. Drill holes of 12 mm and above along the side of the crack at a 45deg angle. The hole should intersect the crack midway through the substrate. Fix injection nipples in the holes. If the concrete does not have sufficient moisture to activate the grout then inject a small quantity of water into the crack prior to injecting the chemical grout. Mix Protecto-Ezefil 600 and Protecto-Ezefil 700 in a 20 :1 ratio by volume (i.e. mix 20 parts of Protecto-Ezefil 600 with 1 parts of Protecto-Ezefil 700). Pump the mixture into the crack at a pressure much higher than the water pressure to ensure that the water is pushed back and displaced by the injected material. Pump the material for one minute and then pause to allow the material to flow into all the voids. Watch for flow of material and movement of water at the surface. When movement stops, inject into the next crack. For vertical crack sealing, start injecting at the bottom of the crack and then move upwards. Re-inject, if required, to ensure that all void and sealed off. Best results are obtained when substrate temperature is greater than 5 degC and material temperature is above 15 degC. Clean the pump by flushing with xylene, toluene or N.C. thinner.

PROPERTIES Specific Gravity 1.1 0.05 Colour Brownish Elongation (IS 2508) Minimum 100% Viscosity at 20 degC 2 poise Mixing Ratio Protecto-Ezefil 600 : Protecto-Ezefil 700 = 20:1 by volume Volume expansion 500-600% Cream Time 1-2 minutes Shelf Life 6 months in unopened containers