The Liquid Applied Roof Waterproofing Kit (LARWK) “IMPERMAX COLD POLYUREA” is a liquid applied roof waterproofing based on polyurea, manufactured by the company KRYPTON CHEMICAL, S.L. It consists of a polyurethane-polyurea resins, bi-component, elastomeric with or without internal protection layer; which once polymerised conforms an elastic lining, in form of a layer completely bonded to different supports (steel and other types of metals, concrete, mortar, ceramic, polyurethane foam (PU) and other waterproofing membranes like PVC, EPDM and bituminous). Depending on support condition, other type of primer may be advisable.