Unlike standard measurement scales, a higher number indicates a smaller particle size. Coarse grit creates a deep, rugged profile known as a "tooth," which provides a strong mechanical bond for protective coatings like epoxy or zinc.
Blasting Grit Size Surface Profile Chart Explained
Environmental and Safety Considerations. The choice between metallic, ceramic, or synthetic grit depends on the base material and the required finish.
Understanding Grit Size Standards The blasting grit size chart operates on a numerical system that can appear counterintuitive to the uninitiated. Softer materials, like brass or soft metals, require a harder grit (such as chilled iron or copper slag) to maintain cutting efficiency without disintegrating too quickly.
Blasting Grit Size Surface Profile Chart Explained
Therefore, a 60-grit product is significantly coarser and more aggressive than an 80-grit product. The chart provides the starting point, but the operator must adjust the air supply and machine settings to match the specific grade being used.
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