Polyurethanes are one of the most versatile polymers in the coatings formulations because of their low temperature and fast curing properties, their physical properties and their ease of application. The combination of resistance properties coupled with highly durable films makes this chemistry one of the most suitable technologies for waterproofing & protection of buildings and infrastructures. Polyurethane liquid applied membranes have excellent properties such as crack bridging and anti-root properties and posses characteristics with highest values : Elongation, Tensile Strength, Bond Strength, Abrasion Resistance, Hardness, Temperature Resistance, Chemical Resistance, Hygiene and Longevity.