Zip tie "witness marks" on engine mount
The original builder of my -8 used zip ties to hold wire bundles to the enging mount. They held up just fine in the environment but in all locations they made their mark (literally) on the mount. Pic attached of the "railroad tracks" that are cut into the paint.
Most were replaced with clamps at the first condition inspection I did. In areas where zip ties remain, the engine mount was locally wrapped with either self-fusing silicone ("F-4"/Rescue) tape or fiberglass tape to give the zip ties something else to dig in to. Holding up fine so far with no more "railroad tracks."
FWIW, I also give my wire bundles a couple of wraps with fiberglass tape to protect them in the areas that are being secured with zip ties. Some wiring insulations are tough enough that it's belt + suspenders protection. However, some FEP (Teflon) insulation on avionics data cables will chafe if you look at it sideways. Add a bit of vibe and you're cutting through before you know it.
These griplock ties sound like they'll kill multiple birds with minimal stones. I ordered a bag and am eager to put them to the test.
Seattle'ish, WA (S36)
50+ hours in it and then decided it needed an "Avionics Upgrade" because I evidently like cutting/crimping/cussing more than flying...
Dues paid 2021