Blast fabrication (frequently referred to as blast cleaning, abrasive blasting, or shot blasting within metal fabrication) is a vital surface preparation process used to clean, deburr, and profile metal before it undergoes welding, painting, or powder coating. By using high-pressure air, water, or centrifugal wheels to propel abrasive media against a surface, it removes rust, scale, and contaminants to ensure heavy-duty coatings bond permanently.