LIGNO-SIL™ lignosulfonates are organic substances, being a natural polymer from the production of wood pulp using the sulfite process. In concrete applications, sodium lignosulfonate is a low-range water reducer with moderate retardation effects. Available as both a liquid and a powder. LIGNO-SIL™ Lignosulfonates are used to reduce the set time in cement and also helps increase the overall compressive strength of cement.