A zinc primer is a spray on coating that goes on before the powder-coating finish. Zinc rich primers are unique from regular primers because they contain zinc which has highly sacrificial anodic properties. High concentrations of zinc dust act sacrificially when in direct contact with steel by providing cathodic protection and galvanizing properties. Simply put, the zinc primer provides a secondary layer of protection. This is an extra measure to help prevent any corrosion that the typical powder coating (without a zinc primer) may not provide during ordinary conditions over time. However, because zinc primer isa spray on coating, it can be scratched or nicked just like paint.
We recommend regularly inspecting your goals for nicks and scratches in the paint and sanding and repainting the area when necessary. This will help prevent rust and prolong the life of your goals. Rust is not a condition of the warranty. The best rust protection is early detection.