How quick will it rust after SODABLASTING?

Soda Bicarbonate is a natural RUST INHIBITOR, when using it as a blast media it will leave a coating on the metal that will inhibit rust for a long period of time.  It is necessary to keep the project stored in a dry area.  We have had cars go longer than 6 months without any signs of rust.  However, we do recommend that the project get a primer coat on as quickly as possible.