On 02/05/2021 10:42, nightjar wrote:

It looks like asbestos tape and if that is being done in Pakistan, it
might be. However, there is a wide range of safer alternatives;

https://www.bevi.com/products/coil-w...s-non-adhesive

At 5:40 a paint is used to cover the wrapped coil, is this likely to
be anything special?

As others have said, that looks more like a varnish than a paint. The
same web site offers these:

https://www.bevi.com/products/coil-w...on-and-casting




Good find but one page says sold only in the Swedish market.