Material alteration and the enhancement of its mechanical properties needs a lot of cost and time investment, therefore an alternative which would result in a cost effective, light weight, aesthetically acceptable product with the required capabilities to cope with environmental state is desirable. In order to increment the life of metal segments, the adverse impact of working condition on parts may be diminished by coating. Coating can be applied by various methods such as electroplating, galvanizing, painting, thermal spray coating, cold spray coating and many more. A coating of polymer was applied on stainless steel and morphology and compositional analysis were performed through SEM. polyurethane coating on 304l SS via Airbrush exhibits that polymer coating on 304L SS results smooth and fine.

Keywords : Scanning Electron Microscopy (SEM), 304L Stainless Steel, Polyurethane, Coating, Airbrush Spray Gun.