Kim, you can rinse with fresh
water and wet a rag with
corrosion block or some other rust inhibitor and wipe them down to keep them shiney.
If your life lines are coated, you can clean the plastic. There is a whole thread about
cleaning that plastic. If you have some cleaner/wax aboard, the kind for
fiberglass, try that on your plastic, it has worked great for me.
Erika