Industrial Mica Flakes & Powder
Rock Astra Minerals manufactures and exports high-quality Mica flakes, block sheets, and dry/wet ground Mica powder. Sourced from high-grade geological formations, our Mica showcases excellent thermal stability, electrical insulation parameters, and resistance to chemical corrosion.
Mica functions as a critical filler and reinforcement agent in plastics, automotive coatings, rubber components, welding electrodes, gypsum joint compounds, and drilling muds. Its unique dielectric properties make it indispensable in high-voltage capacitors, motors, and heating elements.
Technical Grades Specifications
| Grade | Description | Target Applications |
|---|---|---|
| Grade A | Premium Muscovite block Mica and wet-ground Mica powder. Highly delaminated, brilliant sheen. | Pearlescent pigments, high-temperature furnace windows, electronics insulation. |
| Grade B | Dry-ground Mica powder (mesh sizes 100 to 325). Excellent aspect ratio, low mineral impurities. | Automotive plastics compounding, sound dampening coatings, specialty paints. |
| Grade M | Commercial Mica flakes and coarse scrap. Good heat resistance properties. | Oil well drilling mud blockades, asphalt roof shingling, gypsum wallboard joint cement. |