Rapid setting waterproofing admixture

Sika®-4a is a rapid setting waterproofing admixture. When mixed with ordinary Portland cement and water, it sets rapidly to seal areas of severe water infiltration through concrete, rock or masonry.

The benefits of Sika®-4a include, but are not limited to the following:
  • Rapid setting for rapid leak plugging and/or fixing
  • Ready to use, just add clean water and ordinary Portland cement
  • Does not contain chlorides
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