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.
- Ready to use – just add clean water and ordinary Portland cement
- Does not contain chlorides
- Solvent free
- Suitable for use in quick setting mortar for assembly work
- Rapid setting for quick leak plugging and/or fixing
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