Southern California Edison (SCE) developed and demonstrated a method for in-situ repair of a dry storage canister. Built on relatively new but proven technology, the process accelerates nickel particles to supersonic speeds in a controlled environment to achieve metallurgical bonding to the base material. SCE worked with a material engineering vendor to miniaturize the equipment and mount it on a specially developed, magnetic-wheeled robot provided by a robotics vendor. The miniaturized technology passed laboratory testing and field demonstration and is ready for use.