TESA PRO DOUBLE-FACE ULTRA STRONG Our strongest mounting tape is suitable for fastening objects, both securely and permanently.The tesa PRO Mounting Ultra Strong is capable of holding objects weighing up to 10 kg per 10 cm and even compensates slight unevenness on surfaces. Use indoors and outdoors.The ultra strong adhesive works on tiles, finished wood, and most plastics Apply in vertical strips and along the full length of the object or surface.Press down firmly on the mounting tape for at least five seconds.