Corrosion is not the big enemy of copper inhibiting its ability to conduct electricity,oxidation is,which boeshield makes no claim on.Think your water mains at your house,they are copper,and corrosion was the big enemy,copper would never have been used for that purpose,in fact,there ability to resist corrosion was why copper was chosen.Im not saying that copper doesn't corrode,but that it has a high resistance properties.From the boeshield website,they claim to inhibit corrosion,displace water,and lubricate.No mention of oxidation.Sounds very close to the claims of wd-40 to me.It may be superior to wd 40,no argument here with some additional capabilities over wd-40.I just feel that there are better alternatives.IMHO.