When I got my first sailboat more than a few years ago I went to the drugstore and got a tub of pure lanolin ( used in ointments by the pharmacist). I use it on my rigging
, around the swages (especially good in preventing moisture getting in and corrosion), on turnbuckle threads, on shackles, on stainless screws in aluminum
, on anything that I want to protect yet might have to take apart one day. It stays on in the worst conditions. Pure lanolin. Hard to beat and as old as sailing.