Coatings for well screens that protect the screens from damage as they are inserted into the wellbore and once in the well, release reactive materials to react with and degrade potentially plugging materials such as drill solids, fluid filtercakes, fluid loss additives, and drilling fluids. The metallic conducting wires are integrally coated with a non-magnetic and electrically insulating material at a predetermined distance between each of the metallic conducting wires to thereby form coated conducting wires. The processor optimizes a non-linear equation system within the numerical calculation of the parameters involving a desired magnetization and a theoretical calculated real magnetization. The individual seeds are each contacted with a stream of air to move the seeds to the desired locations. A method of securing identifying indicia to small diameter fiber optic cables is also disclosed.