Sika®-2 Water Plug is a ready to use very rapid setting leak stopping liquid which is mixed with ordinary portland cement to produce a paste for immediate leak sealing against high water pressure infiltration.
Immediate sealing of water leaks
Rapid setting time
Just add ordinary portland cement
Does not contain chlorides
Does not require diluting
https://dam-assets.apps.travisperkins.group/bbrXx/GPID_1000135387_COSHH_00.pdf