Protect cables on a tracked vehicle

On this tracked vehicle, the chassis is stainless steel and despit the cable holes being filed and smoothed, there is still a chance cables could wear due to vibration and movement and would cause a devastating short-circuit - SUGRU was of course the answer - a little SUGRU moulded around the inside of the holes and hey-presto, cables are safe. The voltages involved are low and between 3.3 and 12 volts dc.