The Supraten Betongrund is a specialized primer containing quartz sand, designed to prepare surfaces for subsequent finishing layers. It is particularly effective for weakly absorbent substrates, where it creates a rough texture that ensures strong adhesion for the materials applied on top. This product is suitable for use in both interior and exterior environments and comes in a 3.5 kg container. Applying the primer with a brush allows for precise coverage, with each layer typically covering between 5 and 9 square meters. To help you track your progress, the formula includes a pink color indicator, ensuring no spots are missed during application. You will need to allow 24 hours for the surface to dry completely before proceeding with the next step of your project.