Overview: The KOSTER KD2 is a very short cement with a very hardening time and can be turned off instantly by pressing it into the leakage area for 10-20 seconds. In about 45 minutes, it has a compressive strength of 50N/mm2 and after the hydration is completed (after 28 days) it will increase the strength of 60N/mm2 and the adhesive strength of 1.6N/mm2. Will not crack when exposed Uses: Water stopping / Base material suitable for construction / Main ingredients: Portland cement crinker, silicon dioxide, polyacrylamide copolymer / Installation procedure / Water stopping 1) Large explosion areas are left as is, and if water leaks from the crack, V cut to increase the adhesive area. 2) Scooping KOSTER KD2 by hand, compress with both hands and squeeze excess air out. 3) Press into the leakage area for 10-20 seconds. At this time, the strength of holding the material in your hand and forcing it down with your hand is developed. Remove excess ingredients immediately after checking the water stop. The last exposed surface is wet with a brush containing water, and then cure completely.