John Rudd,
Waxoyl is like a rather thickened oil which you can spray, Denso paste is much more of a dense pates that can be moulded into place, hence the name. It does not wash off either. I have dug up steel pipes wrapped in the tape that have been buried for decades, they are still bright
The vet wrap sounds like an even better alternative to scrim with much better elastic properties, well done David, a worthy improvement.
Brian