Coarse Grit (10–30 Mesh): Reserved for heavy-duty operations such as stripping thick rust, mill scale, or old industrial coatings from steel beams and structural metal. Material Compatibility Hardness and density are the two physical properties that determine how a blasting grit interacts with a workpiece.
Crafting Tooth Profile With Coarse Grit Abrasive Media
The size chart for shot is different; a #5 steel shot will clean differently than a #5 angular grit because of its round shape, which is better suited for stress relief rather than material removal. 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.
Grit It is important to distinguish between sharp-edged blasting grit and spherical steel shot when consulting the chart. Sieve Mesh size, which indicates the number of openings per linear inch, or in microns (µm), which measures the particle diameter.
Creating Tooth Profile With Coarse Grit
The choice between metallic, ceramic, or synthetic grit depends on the base material and the required finish. Medium Grit (40–60 Mesh): The workhorse for general industrial maintenance, offering a balance between removal speed and surface refinement for preparation before painting.
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