Kapton tape is used a lot in industry.That's adhesive, and it's tape.
Hi,I've always heard adhesive tape can't be used as insulator, but I don't get why : I measured with a tester the resistance of a thin film of adhesive tape, and his resistance it's above 2 Megaohm.Isn't 2 Megaohm enough to insulate even a large voltage such as 220 Volt? (-> 1 mA as current)
Read the specs - "excellent resistance to: abrasion, moisture, alkalies, acid, copper corrosion and varying weather conditions. It is a polyvinyl chloride (PVC) tape that is flame-retardant and conformable. 3M Temflex 1700 Tape provides excellent mechanical protection with minimum bulk. It is a UL Listed and CSA Certified "Insulating Tape.... rated up to 600 volts".
I had a single-board media player that I took out of its case and stuck to the back of a TV with a big piece of industrial velcro. It wouldn't boot. I peeled the velcro off and put it back in its case and it worked fine. I don't really know what to make of this, since it tended to be a finicky player anyway. Might've been something with the adhesive, or the substrate, or just the player being a PITA.