Rust is just natural weight reduction.
1986 SD33T SWB
I feel your pain, I haven't managed to find anything that's half as good as the factory stuff. I have previously used basic electrical tape and it's just no good for automotive applications.I suggest leaving the original tape on the loom if its not coming off in places.
That is one consumable i wish i could find. Factory harness tape. Both the thin and not goopy stuff generally used in the cab around the bare wires.
And also the stuff they wrap around the split conduit for looms that run down the chassis. This stuff again is never goopy and is almost conformed to its shape and can go brittle with age but if left alone will hang on tight for ever.
I hate nothing more than unwrapping a piece of factory loom to then have to use that junk nitto tape cos thats all you can get.
I would imagine Tesa and 3M will have products that work well, but its just a matter of tracking down the right one(s) since they both make so many varieties. Buying several varities at $10+ each could soon get expensive for the purpose of experimentation too.
Cloth tape seems to be an increasingly popular option from the little searching I have done. I'd always assumed it would trap dirt in the weave of the cloth, but I could be wrong. I'll try and stick with PVC anyway as that is what Nissan used.I feel your pain. I avoid electrical tape like the plague. I'd much rather use split corrugated tubing or braided sleeving, with heatshrink. If tape is unavoidable, I use TESA cloth tape.
@james008 can you perhaps clean the old paint off the original covering? Maybe with a bit of metho...? It'll drive me nuts as well.
I have tried metho, but unfortunately it wasn't overly successful. Brake cleaner works a bit better, but it does affect the tape. I even tried a razor blade held perpendicular to the surface which somewhat worked but was obviously no good in little dimples or crevices.