Foreign material must not be applied to the club face for the purpose of influencing the movement of the ball.
- See more at: http://www.usga.org/Rule-Books/Rules-of-Golf/Rule-04/#sthash.7wD7r6qv.dpuf
In light of that rule, would it be legal for me to, after cleaning my clubs, use something like car wax on them for the purpose of protecting them and making them look nice? I really have no idea if that would affect the movement of the ball - I'd guess not - and I would not be doing it for the purpose of influencing the movement of the ball. But if it *could* influence the movement of the ball then I would think it would still be illegal.
So what do you guys think? I just got new irons, hybrids, and fairway metals and I'd like to do anything I can to keep them in good shape and looking good, but I want to stay on the legal side of the rules.