Vandex Super is a cement-based waterproofing slurry specifically designed for concrete waterproofing applications. It is mixed with water prior to application by brush or spray. When Vandex Super is applied to a concrete surface, the active chemicals combine with the free lime and moisture present in the capilliary tract to form insoluble crystalline complexes. These crystals block the capillaries and minor shrinkage cracks in the concrete to prevent any further water ingress (even under pressure). However the Vandex Super layer will still allow the passage of water vapour through the structure.