To use the tape, simply stretch it around the material you are trying to repair. As you wrap the tape in a circular motion, it begins to seal and “fuse” itself to the material. The most common forms of self-fusing / self-amalgamating tapes are made of silicone rubber (though other types also exist). They are designed to create a strong, seamless, rubbery, waterproof, and electrically insulating layer.

Overcurrent Protection Devices
Another significant benefit of butyl rubber tape is its exceptional sealing properties. It is often used as a waterproofing solution, capable of sealing joints, gaps, and cracks to prevent water intrusion. This feature is particularly valuable in roofing applications, where leaks can lead to extensive damage and costly repairs. Butyl rubber tape can also be used in plumbing to seal pipes and fixtures effectively.



3M also makes an electrical tape made of silicone rubber for applications where Class “H” (180°C/356°F) temperatures are encountered i.e., silicone rubber cables.