• General coverage: Normally one 44lb (20 kilos) box of C2 can fill upto 35 linear feet (10 meters) of 1.5 inches (3.8 centimeters) diameter holes. Might not have to fill up every hole depending on application.
  • Each 5 kilo container will fill 8 linear feet of 1 1/2 hole, 10 linear feet of 1 3/8 hole, or 11 feet of 1 1/4 hole.
  • For 1 1/2 holes: # of holes x depth in feet 8 = number of 5 kg. needed.
  • For 1 3/8 holes: # of holes x depth in feet 11= number of 5 kg. needed.
  • For 1 1/4holes: # of holes x depth in feet 12= number of 5 kg. needed.


  • The most cost effective demolition technique is often a combination of CALCIUM HYDROXIDE C2 (to produce cracks) and a hydraulic hammer. Jack hammer, Drill holes can be spaced out further in this case.
  • The best way to demolish underwater rocks or concrete is to build a coffer dam and pump out the area. CALCIUM HYDROXIDE C2 hardens in fifteen to twenty minutes, and after that the area can be flooded again.
  • CALCIUM HYDROXIDE C2 must be used in holes; pouring it into existing cracks in rock will not work.
  • Safety goggles must be worn at all times by everyone in the area. Hard hats and steel- toed boots are a good idea on any construction or demolition site. As an added benefit, use of safety gear enhances your professional image in the eyes of the public, and avoids OSHA lines.
  • When using the usable temperature chart, bear in mind that the actual drill hole temperature may be much higher than the surrounding air temperature if it is in the sun or affected by nearby heat from machinery or from drilling the holes.
  • Cold temperature, hard rock, or holes spaced too far apart can lengthen breaking times. If it did not break overnight-wait a while before assuming failure. CALCIUM HYDROXIDE C2 continues to increase pressure for 24-28 hours.
  • If mixed CALCIUM HYDROXIDE C2 begins to steam in the bucket, add 1/2 gallon or more of water, stir, and throw it away. You've allowed too much time to pass from beginning to mix.
  • If filled holes start to smoke or steam, that is a sign they may be about to blow-out shot. Immediately clear the area of people. The vapors are only steam, and are not hazardous or toxic in any way.


  • Using too large a hole diameter.
  • Using too warm mix water. See temperature chart.
  • Using too little water, especially when rock or concrete is above 730F.
  • Too much time passing between beginning to mix and filling holes.
  • Mixing by hand.
  • Guessing at drill hole temperature instead of measuring it.
  • Guessing at water temperature instead of measuring it.
  • Holes that are too shallow. Depth must be 4 times diameter or more.
  • Allowing the power to become too hot before mixing with water.
  • A "know-it-all" attitude that causes some people to ignore this manual instead of reading it thoroughly, cover to cover.
  • Drill hole Diameter 1 1/2 is best to do.
  • Blowouts will usually not occur more than 3 hours after filling holes.


  • Use the right grade of CALCIUM HYDROXIDE C2 for the temperature range, especially with rock or concrete.
  • Keep every source of heat away from CALCIUM HYDROXIDE C2 in direct sunlight or near a source of heat, cool SCA before use.
  • Do not store CALCIUM HYDROXIDE C2 in direct sunlight or near a source of heat, cool SCA before use.
  • Do not mix into small or narrow-mouthed plastic cans or bowls use instead a metal bucket.
  • Cool every tool you are going to use before mixing.
  • Use the indicated water amount (1.1/2 (One and half) liter for each bag of 5 kg of product)
  • Do not use hot water to mix CALCIUM HYDROXIDE C2.
  • Mix manually no more than two bags (10 kgs) for each batch at a time.
  • Mix thoroughly avoiding lump formation for at least 2-3 minutes.
  • Ff the mortar becomes lightly stiff add a little more water to achieve the right fluidity.
  • Pour all freshly mixed mortar into holes within 5 minutes of mixing.
  • Do not overfill the holes.
  • Do not tamp filled holes with bars or similar tools.
  • Do not plug holes with hard or setting materials after filling.
  • Do not pour CALCIUM HYDROXIDE C2 mortar into glass bottles or similar containers: the pressure will shatter the glass. Dispose of non used mortar only after substantial dilution with water on an open surface.