self-fusing tape; self-amalgamating tape
A tape that bonds to itself when stretched and wrapped, without adhesive. Used for electrical insulation, plumbing, and emergency repairs.
Self-fusing tape adheres to itself when wrapped while stretching.
I used self-fusing tape to waterproof the wiring.
絶縁テープ is general electrical insulating tape, often with adhesive. 自己融着テープ bonds to itself without adhesive and provides a waterproof, airtight seal.
Compound of 自己 (self), 融着 (fusion bonding), and テープ (tape). A modern technical term describing tape that fuses to itself.