Blast Media, Abrasive Media Type Brown Aluminum Oxide, Grit 80, Container Size 50 lb, Compatible Mesh Size - Minimum 70, Compatible Mesh Size - Maximum 80, Compatible Blast Pressure - Minimum 60 psi, Compatible Blast Pressure - Maximum 100 psi, Number of Cycles - Minimum 6, Number of Cycles - Maximum 8, Container Type Bag, Particle Diameter - Minimum 106 micron, Particle Diameter - Maximum 212 micron