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Metal sandblasting, also known as abrasive blasting or grit blasting, is a surface preparation process that uses abrasive materials propelled at high velocity to remove contaminants, rust, or coatings from metal surfaces. Here's a simple explanation:


The metal surface is prepared by cleaning and masking any areas that should not be blasted.

Abrasive Material:

Abrasive materials, such as sand, grit, or shot, are used as the blasting media.

Blaster Equipment:

A sandblasting machine or nozzle is used to propel the abrasive material at high speed onto the metal surface.

Impact and Removal:

The abrasive particles impact the metal surface, removing rust, paint, scale, or other contaminants.

Cleaning and Roughening:

Sandblasting not only cleans the surface but can also create a rough texture, improving adhesion for coatings or paints.

Dust Collection:

Dust and debris generated during the process are collected to maintain a clean working environment.

Types of Sandblasting:

Different techniques include bead blasting, shot blasting, and soda blasting, each with specific applications.


Used in various industries for preparing metal surfaces before painting, coating, or welding.

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asked Jan 16 in Metal Arc Spraying by Nigen Platinum (18.4k points)

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