Sika 4a Waterstop is a rapid setting, ready to use waterproofing admixture which can be used to produce a paste for leak stopping against high water pressure infiltration when mixed with water and ordinary Portland cement. Leak stopping cement admixture Seals against high water pressure Can be diluted up to 1 : 4 with water Internal and external use Suitable for contact with drinking water Does not contain chlorides, and is solvent free Ready to use – just add clean water and ordinary Portland cement Rapid setting for quick leak plugging and/or fixing

Brand Name	Sika
Colour	Brown
Manufacturer Model No	1070505
Type	Waterproofer