What is Black Silicon Carbide?
Black Silicon Carbide (SiC) is an artificial abrasive with exceptional hardness (Mohs 9.2–9.5), strong wear resistance, and excellent thermal stability.
Thanks to its sharp-cutting grains, reusability, and lower overall blasting cost, it has become the preferred choice for high-demand surface preparation tasks.
At GREAT Abrasive, we specialize in providing premium-grade Black Silicon Carbide tailored for blasting applications across industries—from aerospace to foundry.
With our deep expertise and strict quality control, we help clients like Tyrolit, Cumi, and other leading toolmakers maintain stable production and consistent performance.
Key Advantages of Black Silicon Carbide in Sandblasting
1. Extreme Hardness
With a Mohs hardness up to 9.5, Black SiC is far tougher than quartz (Mohs 7), allowing it to effectively blast high-strength substrates such as hardened steels, ceramics, and titanium alloys.
2. Sharp-Cutting Grain Shape
The angular structure of GREAT Abrasive’s Black SiC ensures aggressive cutting action—up to 30% faster cleaning speed than conventional abrasives.
3. High Thermal Resistance
Ideal for high-temperature blasting environments like foundry de-sanding and thermal spray prep.
4. Low Dust, Environmentally Friendly
Compared with brown fused alumina or glass beads, our SiC generates far less dust—helping customers reduce ventilation costs and meet strict EHS regulations.
5. Highly Reusable
Thanks to its toughness and low friability, GREAT Abrasive’s SiC can be reused 3–5 times, significantly reducing your media consumption per job.
Typical Applications
1. Metal Surface Treatment
Rust and scale removal from steel, aluminum, and copper parts
Seam cleaning to enhance coating adhesion
Aerospace parts prep (e.g., turbine blades, precision engine components)
2. Non-Metallic Processing
Etching glass or ceramics with no cracks
Deep engraving on decorative stones and tombstones
3. Foundry & Mold Cleaning
Sand removal from intricate castings
Surface restoration of steel molds to extend lifecycle
Recommended Blasting Parameters
| Parameter | Recommended Value |
| Grit Size | #16–#80 (coarse), #100–#220 (fine blasting) |
| Pressure | 0.4–0.8 MPa (typical for metal parts) |
| Nozzle Angle | 45°–75° for optimal surface cutting |
| Blasting System | Dry or wet system with compressed air |
Need custom sizing or bulk packaging? GREAT Abrasive can customize solutions based on your blasting setup.
How It Compares to Other Blasting Media
| Material | Hardness | Reusability | Dust Level | Cost Efficiency |
| Black Silicon Carbide | ★★★★★ | ★★★★☆ | ★★★★☆ | ★★★★☆ |
| Brown Fused Alumina | ★★★★☆ | ★★★☆☆ | ★★☆☆☆ | ★★★☆☆ |
| Glass Beads | ★★☆☆☆ | ★★☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ |
| Quartz Sand | ★★☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★☆☆☆ |
Why Choose GREAT Abrasive?
✅ Consistent Quality: Strict production and QC standards ensure batch-to-batch reliability.
✅ Global Trust: Exporting to Europe, North America, and Japan with long-term partnerships.
✅ Flexible Supply: From jumbo bags to small sacks, we meet diverse customer needs.
✅ Technical Support: Our team provides guidance on grit selection, equipment setup, and blasting optimization.
Final Thoughts
For manufacturers who demand precision, productivity, and durability, Black Silicon Carbide is a top-tier abrasive—and GREAT Abrasive is your go-to supplier.
Whether you’re cleaning jet engine blades, etching high-end glass, or removing casting sand—we’re here to help your blasting line run cleaner, faster, and smarter.
Let’s raise your surface treatment efficiency to the next level—now.
