SURFACE PREPARATION IN MARINE APPLICATIONS USING SAND BLASTING

In this paper, improving of surface roughness characteristics by varying blast angle and blast time on a mild steel marine substrate using sandblasting technique. In marine applications we are having much scope in this surface coating and surface preparation. In marine applications generally before applying of surface coatings initially we need to prepare the surface of the substrate. Sandblasting is one of the best conventional methods of preparing a substrate material surfaces before applying a coating or other finishes. It is the process of impelling a stream of abrasive material in a controlled manner against the substrate material. In sand blasting we can improve the surface finishing, where surface roughness plays vital role in surface preparation, by varying the blast angle and blasting time we can improve the surface roughness of the substrate. In this paper we will discuss about the Surface roughness characteristics by varying blasting time, blasting angle in sand blasting technique