Most of the time, when companies purchase garnet for waterjet machining, they receive the substance in a sand-type form, after it’s been run through a screen to obtain the exact sizing required. Garnets come in a range of “mesh” sizes, and companies generally choose a mesh size based on the material they’re cutting.

Most fabricators that process a wide range of materials choose garnet mesh sizes that work on both thick and thin materials-typically 80 mesh. Specialist organizations that cut thicker materials (like granite or steel) might select a coarser 60 mesh, while companies that cut plastic or aluminum might stick to 120 mesh.

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