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Shot blasting is a very useful technique for surface preparation of metallic sheets. It has many advantages that have made it so popular as a solution for removing paints, rusts and other elements from the metal surface. Shot blasting is a very safe, economical, and efficient way to handle different metals. In this method, different media like steel cut wire shot, round cut wire shot and others are used as projectiles to clean the metal surface. Even when we talk about shot blasting, it can be divided further into grit blasting and abrasive blasting. In grit blasting, we use soft media like alumina, silicon carbide to clean the surfaces of walls, wood et cetera. On the other hand, if you want to clean the surface of metal sheets, then you need to use steel balls, cut wire shots and other hard materials. Due to its amazing effectiveness in cleaning a very hard surface, shot blasting method is very popular to prepare the surface of a metal sheet or metal parts. While treating the metal surface, we select the media by looking at the thickness and calibre of the metal. For example, small steel pellets and shots are used to clean the surface, whereas steel grit is used to deform the surface so that further preparation on it can be made.

Why shot blasting method is used for steel preparation

Shot blasting is the preferred method for steel preparation due to its many advantages, some of which are given below.

·         It gives us the flexibility to choose what kind of finish we require.

·         It gives us more control and thereby accuracy in cleaning the surface.

·         Shot blasting helps us to comprehensively clean the surface without leaving any residue, corrosion, or dust.

·         Compared to manual cleaning it is significantly faster.

·         You can clean the scales over the metal surfaces without damaging the metal underneath.

·         After cleaning the surface through the shot blasting process, it improves the compressive strength of the metal.

These are just some of the reasons why the shot blasting process is so popular in the industries and workers prefer this method over others to treat the metal surface before painting or powder coating.

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