What is cotton insulation tape used for?
Mr.Bond® Black Cotton Tape is used in conductor wrapping, connection wrapping and interlayer coil insulation. Those are all applications where a tape has to be wound tightly around something round or awkward and has to insulate what it covers.
It is made from 100% fine insulated cotton substrate backed with a strong rubber-based adhesive. The cotton carrier is what gives it its handling character: it conforms around conductors and coil ends without the creasing and tenting a film tape shows on a curve, and it tears cleanly by hand so a winder does not need a knife.
Rubber adhesive grips on contact, which is what a wrapping tape needs when each turn has to hold the one beneath it. It is available in white and black, and the full insulation range across the group is at Lalit Jain Industries Pvt. Ltd. (LJIPL).
What is interlayer coil insulation?
When a coil is wound, the turns in one layer sit against the turns of the layer below. Interlayer insulation is the material placed between those layers so that adjacent turns are separated by something other than the wire enamel alone.
A cotton tape suits this because it is thin, it lies flat under the next layer of winding, and it stays put while the winding continues. The 100% fine insulated cotton substrate provides the insulation property, and the strong rubber-based adhesive holds each turn so the tape does not unwind as the coil is handled.
Can I get cotton tape in custom sizes?
Yes. Die-cut sizes and other thicknesses can be customised as per requirements, and the tape is available in white as well as black.
When you send an enquiry, give the width, the colour, the thickness and the application, conductor wrapping, connection wrapping or interlayer coil insulation each pull in slightly different directions. Share your requirement and the technical team will confirm the specification and quote against it.
Our guide to cotton tape for conductor and coil wrapping goes through why a winding wants a woven carrier, what interlayer insulation is doing, and what to send when you ask for a die-cut size. For coil and conductor work outside a battery pack see tapes for the electronics industry; for pack-level insulation see the EV battery tapes hub.