Grit blasting (also known as abrasive blasting or sandblasting) is a surface preparation process in which abrasive particles (commonly referred to as "grit") are propelled at high velocity onto a surface to clean, smooth, or roughen it. The process is commonly used for cleaning or preparing metal, concrete, wood, and other materials.
Various types of abrasive media can be used, including sand, steel shot, glass beads, aluminum oxide, and even organic materials, depending on the specific application.
A sandblasting cabinet or booth is used to blast the abrasive material. Compressed air is used to propel the grit toward the surface.
Grit blasting can remove rust, old paint, coatings, corrosion, or other contaminants from the surface of materials. It creates a roughened texture on surfaces to improve adhesion for paints, coatings, or other finishes. Fine abrasives can be used to polish or smooth surfaces, such as glass or metal. It helps in removing sharp edges or excess material left after manufacturing processes.
Grit blasting is widely used in industries such as manufacturing, automotive, construction, and aerospace for various cleaning, preparation, and finishing processes.