IMPERMAX is a liquid applied roof waterproofing kits based on pure polyurethane, manufactured by the company KRYPTON CHEMICAL, S.L. It consists of a polyurethane resin, liquid-applied, mono-component, elastomeric with or without internal protection layer. IMPERMAX/ST/QC/TIXO reacts with the environmental humidity (direct reaction). IMPERMAX A is moisture triggered cured (indirect reaction).

Once polymerised they conform an elastic lining, in form of a layer completely bonded to different supports (steel and other types of metals, concrete, mortar, ceramic, timber, polyurethane foam and other waterproofing membranes like PVC, EPDM and bituminous). Depending on support condition, other type of primer may be advisable.