... , silicon carbide, silicon carbide, steel, copper beads, Plastic blasting media Plastic abrasives deliver a high stripping rate and consistent performance ... for coatings. The sharp particles of aluminum oxide or other media abrade the surface. Incidental corrosion, rust, and old coatings ... when screen separating parts from media after use. Mesh Description8-12 mesh / 1.70-2.36 mm10-20 mesh / 0.85-2.00 ...