Thermo Scientific™ Silicon carbide powder, medium, 120 grit, ≥97.0%

Thermo Scientific™ Silicon Carbide (SiC) Powder, Medium, 120 Grit is a high-purity crystalline material (CAS 409-21-2) with an assay of ≥97.0% SiC. Also known as carborundum, this material is renowned for its exceptional hardness (Mohs 9 / Knoop 2500), thermal stability, and chemical durability.

The average particle size is 90–125 µm (FEPA-Standard 42-1:2006, medium grit), making it ideally suited for abrasive, grinding, and polishing applications. Beyond abrasives, silicon carbide plays a critical role in high-endurance industrial parts, including automobile brakes, clutches, and ceramic armor plates, as well as in advanced electronic and biotechnological research.

Key Features

• High purity – assay ≥97.0% SiC.
• Medium grit (120 grit) – average grain size 90–125 µm.
• Extreme hardness – Mohs 9, Knoop 2500.
• Low impurity profile – free carbon ≤0.5%; Fe₂O₃ ≤0.2%.
• Thermal stability – withstands high temperatures and maintains structural integrity.
• Versatile applications – industrial, electronic, and biological uses.

Applications

• Abrasives – grinding, polishing, lapping.
• Industrial components – high endurance materials such as brakes, clutches, and bulletproof ceramic plates.
• Electronics – semiconducting material for LEDs and sensors.
• Biotechnology – used in plant transformation protocols (e.g., production of transgenic maize).
• Composite reinforcement – enhances crack-healing behavior in zirconium diboride ceramics and silicon carbide whisker composites.

Technical Specifications

Available Formats

Thermo Scientific™ Silicon Carbide Powder, Medium, 120 Grit is a robust, high-performance abrasive and industrial material, combining extreme hardness, thermal resistance, and purity. Its wide application range—from mechanical polishing and grinding to semiconductor devices and biotechnological research—makes it indispensable for both industrial and advanced scientific workflows.