Sika®-4a Waterstop is a ready-to-use liquid solution designed to create an effective, waterproof barrier in concrete and masonry. The product is specifically formulated to block running water or seepage through walls or floors in various construction projects. This 5-litre container provides ample supply for large scale applications, ensuring the durability and longevity of your structures against water damage. Sika®-4a Waterstop is easy to apply with a brush or roller and sets quickly, making it a reliable choice for professional builders and DIY enthusiasts alike.