Available at selected stores. Check your local store for details
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.
Features and benefits
Rapid setting for rapid leak plugging and/or fixing.
Ready to use, just add clean water and ordinary Portland cement.