Lewmar recommend their own waterproof gear grease for servicing winches and many other onboard applications.
Lewmar Grease is a special formula calcium sulphonate grease developed for winch maintenance and other marine applications.
Lewmar Grease is available in a handy 100 gram tube or a long-serving, multi-tasking 300 gram tub.
Small size = 100g tube = L19701000
Large size = 300g tub = L19701100
Consult your winch servicing instructions - do not apply to parts where only high performance lubricating oil is suitable.