1) Product Introduction Glass beads for sandblasting has the features of chemical stability, high mechanical intensity and hardness. They can be� blasted onto the object surface with compressed air and can be used on compress glass, rubber, plastic, moulds with metal casting or compressing. The jetting balls would help reduce elasticity of the surface materials and increase wearing capacity.  2) Product Specification Main products specification for sandblasting according to following table: No. Diameter(um) Corresponding sieve size 1 850-425 20-40 2 425-250 40-60 3 250-150 60-100 4 150-105 100-140 5 105-75 140-200 6 75-45 200-325�  You can choose different size glass bead between 45um-850um according to different function. �  High Strength Glass Beads (for Blasting) With compressed air as implicit power, this product is made by sprinkling beads under high speed and pressure on the surface of workpiece for peening and polishing. Other purposes of the products are as follows: 1.� Clear diverse moulds of impact forging, forging, glass, rubber and plastic, metal casting and extrusion. 2.� Eliminate tensile stress, increase fatigue life and enhance stress corrosion resistance. For example, aircraft engine turbo, vane, shaft, undercarriage, diversified springs and gears, etc. 3.� Clean and remove slitter edge and burr on the circuit plate and plastic-sealed geminate transistors before stannum soldering 4.� Remove stems in the piston and cylinder and provide bright and half-lackluster surface for medical mechanical instruments and automobile parts 5. Clear electromotor and such parts as loop, electric brush and rotor of during heavy repair 6.� Clean up and remove burr of metal tube and precisely-melten non-ferrous metal tube. Be used for peening aggrandizement and polishing of textile machinery parts. �  High Strength Glass Beads for blasting Type Mesh Grain Size �¼ m 30# 20-40 850-425 40# 30-40 600-425 60# 40-60 425-300 80# 60-100 300-150 100# 70-140 212-106 120# 100-140 150-106 150# 100-200 150-75 180# 140-200 106-75 220# 140-270 106-53 280# 200-325 75-45 3) Technical references  Appearance: Clean and transparent, no visible bubbles and impurity. Density:2.4-2.6g/cm3 Hardness:6-7(Moh's) Spherical beads: 75% SiO2 content: 72% 4) Package 1.Using double-deck package, the inner is polythene film and its thickness is not less than 0.5mm; the outer is plastic woven bag to prevent leak or damp. The net weight of each bag is 25±0.2kg. 2.Using double-deck package, the inner is polythene film and its thickness is not less than 0.5mm, the outer is paper-plastic compound bag to prevent leak or damp. The net weight of each is 25±0.2kg. 3.According to clients' requirement.