Mark Bullard
Well-Known Member
- Joined
- Jan 26, 2004
- Messages
- 1,813
What makes the 3M # 5 work. The #5 tape is not a tape it is a film and is a OEM of the electric motor manufacture and repair industries. It is 1 mil Mylar film with a 1 mil silicone adhesive. The adhesive is what makes it work and I do not know of any other tape that uses this same adhesive. We use this tape in my business of repairing electric motors. Mainly dc armatures, it gives us very little build up between the beginning of the winding from the commutator bars to the ending of the winding that terminates back to the commutator. The insulating value of this tape is 10,000s volt per layer. I know that the tape is high in price but if you think that it is high you should pay my new copper magnetic wire or bearing bill. I have about 75, 100lbs buckets of new wire at about $10.00 per lb. And I keep more bearings on the shelves than the local bearing houses.