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M&M Inter Co.,Ltd.

Sandblasting and shotblasting are two common methods of abrasive blasting used for surface preparation and cleaning. Although they share similarities, there are some key differences between the two methods.

Sandblasting, also known as abrasive blasting or media blasting, uses compressed air to propel small particles of abrasive material (such as sand, glass beads, or aluminum oxide) at high speeds against a surface to remove coatings, rust, or other surface contaminants. Sandblasting is often used in industrial applications, such as in the automotive or construction industry, to prepare surfaces for painting, coating, or bonding.

Shotblasting, on the other hand, uses small steel balls, known as shot, to clean and prepare surfaces. The shot is propelled at high speeds against a surface using a specialized machine, called a shot blaster. Shotblasting is often used to remove surface contaminants, such as rust or scale, from metal surfaces, and to prepare concrete surfaces for coatings or overlays.

The main difference between sandblasting and shotblasting is the type of abrasive material used. While sandblasting uses a variety of materials, shotblasting specifically uses steel shot. This can make shotblasting more effective at removing tough surface contaminants, such as rust or heavy coatings, from metal surfaces. However, sandblasting is often preferred for more delicate surfaces, such as wood or stone, as it can be used with gentler abrasives.

Another key difference between the two methods is the equipment used. Sandblasting typically uses a handheld nozzle and air compressor to propel the abrasive material, while shotblasting requires specialized equipment such as a shot blaster machine.

Overall, both sandblasting and shotblasting are effective methods for surface preparation and cleaning, and the choice between the two depends on the specific application and surface being worked on.