No, the Smart Meter Guard will not corrode or rust. It is made of 316 stainless steel that does not rust or corrode, even in the harshest weather conditions. Unlike other products on the market, it will withstand many years being exposed to the UV rays from the sun. Other products that use a polymer or foam covering will deteriorate with long exposure the UV rays from the sun. The Smart Meter Guard is guaranteed to last 15 years.