lanolin and wire

[Brion Toss]

Hello,
I certainly wouldn't want your wire to be holding onto any crud, but have only experienced this occurring on exposed surfaces like turnbuckle threads. Under service, the whole point is that crud, or water, or anything else, is excluded. If you weren't planning on serving (over lanolin and parceling), then I wouldn't put anything on the wire. Just be sure that the lashing isn't so dense that water can't evaporate.
What is the hook to be used for? If it is for a boom "harbor hook", then you should have a significantly stout lashing, that might require service under it, to prevent slippage. Service would also prevent the hook, if it were directly attached, from scarring the wire. If you are supporting something lighter, I recommend a Clamptite Tool seizing, using monel wire.
Fair leads,
Brion Toss