Knauf Waterproofing cuff is 425x425x0.5 mm for flooring - bathroom, kitchen, balcony and other floor surfaces, drainage points and water sensitive parts are designed for reliable sealing. The perfect combination of high quality elastic material and is perfectly combined with the layers of water, prevents water and moisture from the constructuation. The size of 425x425 mm provides a large cover area, and the thickness of 0.5 mm is both elasticity and strength. It is easy to install, long-lived and resistant to temperature changes, chemical impacts. It is an ideal choice for floor insulation in new construction and repair work.