4.5″Inch 115mm Industrial-Grade Black SiC Sanding Disc for Metal Polishing
Product Overview
Designed for high-speed metal finishing, this 4.5-inch silicon carbide disc combines a heavy-duty latex backing with concentrated SiC grain clusters. The specialized “Cut-and-Cool” abrasive pattern delivers 25% faster material removal on aluminum (Brinell 25), brass (Rockwell B55), and soft steels while maintaining surface temperatures below 150°F.
Product Advantages
1.Anti-Loading Technology: Micro-channels divert metal particles away from cutting surfaces.
2.RPM Stability: Balanced for vibration-free operation at 12,000 RPM.
3.Grit Retention: Electrostatic coating ensures 95% grain retention after 5 hours of use.
Applications
1.Jewelry Making: Polishing silver alloy castings to mirror finishes (P800 grit).
2.Marine Industry: Removing oxidation from aluminum boat hulls (P180 grit).
3.HVAC Manufacturing: Deburring copper refrigerant tubing (P320 grit).
Specifications
| SIZE mm | INCH | HOLE/TYPE | BACKING | PCS/CTN |
| 50 | 2″ | No hole | Velcro | 10000 |
| 75 | 3″ | No hole | Velcro | 4000 |
| 100 | 4″ | No hole | Velcro | 3000 |
| 115 | 4.5″ | No hole/8 holes | Velcro | 2000 |
| 125 | 5″ | No hole/5/6/8 holes | Velcro/PSA | 2000 |
| 150 | 6″ | No hole/6/9/15/17holes | Velcro/PSA | 1000 |
| 180 | 7″ | No hole/8 holes | Velcro/PSA | 1000 |
| 200 | 8″ | No hole | Velcro/PSA | 1000 |
| 225 | 9″ | No hole/8/9holes | Velcro/PSA | 1000 |
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