I have been using Liquid Tape for many years. It is great for repairing wires and cables, especially flat ribbon cables that get scuffed.
I find it can be a bit messy, especially when working overhead. I use multiple thin coats to avoid dripping.
When you are adding taps, stagger the two tap wires slightly along the length of the buses so that even if the two buses were to touch, there would be no direct contact of the taps.
