Tanking slurry is a crystalline product which is used to waterproof both masonry and blockwork. There are many reasons behind why rooms might be waterproofed; for rooms below ground-level or properties close to water, it can be an effective safeguard against damp or flooding. Alternatively, it can be the first stage in creating certain types of interiors, such as a dedicated wet room. At R&J we’re known for our association with national brands, allowing us to stock market-leading products such as KA 25kg Grey Tanking Slurry.