Sandblasting is the process of shaping, cleaning and smoothing surface, by blasting solid particles (of sand, baking soda, corn cobb, walnut shells etc.) across the surface at high speed.The effect is similar to that of using sandpaper, but sandblasting provides a smoother and more even surface. This process is used to remove paints or coatings before applying a new paint or coating. It can also be used to remove parts of paint to create a decorative pattern.