Sandtex Stabilising Solution is a high-quality, professional-grade primer designed to prepare external surfaces for painting. This 2.5L tub covers a wide area, providing an ideal base for any masonry paint. It works by penetrating and binding loose or chalky surfaces to create a stable platform for paint application. Its clear finish leaves the surface texture unchanged. It is quick drying, water-based, and its low odour formulation makes it user friendly.