Conplast WL is a dark brown liquid based on lignosulphonates which mixes readily with water and therefore disperses evenly. Conplast WL waterproofs by improving the quality of the concrete or mortar. It reduces the water demand for required workability and minimises segregation and bleeding. Thus it is more effi cient compared to traditional powder waterproofers as its use results in two fold improvement of concrete or mortar.