Walnut Shell Abrasive | Light surface cleaning, food-grade surfaces | Material: 100% walnut shell (ASTM C690 compliance) Grit: 5-200# Mohs hardness: 2-3 (▲ Base: 5# → Advanced: 200#) | ▲ Eco-friendly: Biodegradable, low dust (reduces inhalation risks) Recyclable (up to 5 cycles) | Lower abrasive strength vs. synthetic abrasives (not ideal for heavy-duty applications) |
Aluminum Oxide | Heavy industrial blasting, rust removal | Grit: 24-240# (ISO 11124-1) Hardness: Mohs 9 (▲ Base: 60# → Advanced: 240#) | High durability (reusable 10-15x) ▲ Versatile: Effective on steel, cast iron | Generates metallic dust (requires PPE) Higher cost vs. natural abrasives |
Silicon Carbide | Precision finishing, non-ferrous metals | Grit: 24-240# (ASTM C136) Hardness: Mohs 9.5 (▲ Base: 40# → Advanced: 220#) | ▲ Sharp edges: Maintains cutting efficiency longer Non-conductive | Brittle (fragile under impact) Not reusable due to rapid degradation |
Glass Beads | Deburring, surface peening | Diameter: 50-3000 µm (ISO 11124-2) Hardness: 6-7 (Mohs) | ▲ Non-abrasive: Leaves smooth finishes (ideal for aerospace) Chemically inert | Higher cost per unit weight Less effective on heavily corroded surfaces |
Garnet | Marine, sandstone blasting | Mesh size: 8-200 (ASTM E11) Hardness: Mohs 7-7.5 (▲ Base: 12# → Advanced: 180#) | ▲ Aggressive: Removes thick coatings (e.g., paint, rust) Non-toxic (OSHA-compliant) | Rapid wear rate (low reusability) Heavy bulk density increases shipping costs |
Plastic Media (Melamine) | Delicate surface finishing, electronics | Particle size: 0.1-5 mm (ISO 3310) Hardness: Mohs 3 (▲ Base: 0.5mm → Advanced: 2mm) | ▲ Low-pressure operation: Safe for soft metals/plastics No dust generation | Limited to light-duty applications Less effective on hardened surfaces |